## A Treatise on Elementary and Higher Algebra |

### From inside the book

Results 1-5 of 100

Page 8

...

...

**give**equals . Also , equals multi- plied or divided by equals ,**give**equal products , or equal quotients . Equal powers or roots of equals**give**equals . III . Equals added to or subtracted from unequals ,**give**unequals . IV . Things ... Page 14

...

...

**gives**a b c for the remain- der , and adding d to this remainder , we get ab− c + d for the true remainder , after subtracting cd from a - b . - - It is easy to see that in subtracting cd from ab , we have changed the signs of c - d ... Page 24

...

...

**gives**d ( a + b - c ) da + db - de , or ( a + bc ) dad + bd cd , since , by what has been shown , the factors of each product may be interchanged . It is easy to see that if the multiplier had been - - should have had - - ( a + b −c ) ... Page 32

...

...

**gives**24a + 15a3 + 53a2 + 20a28 for the sought product . = If a 10 , it is easy to change the sum of the coefficients . into the sum of the coefficients 2+ 6 + 0 + 5 + 2 + 8 , which , by supplying the proper powers of a ,**gives**2a + 6a1 ... Page 38

...

...

**give**+ , and unlike signs**give**; so that when any term of the mul tiplicand is multiplied by any term of the multiplier , if the signs of the two terms are both + , or both — , their product must be + , but if one of the terms is + and ...### Contents

120 | |

129 | |

135 | |

141 | |

150 | |

157 | |

163 | |

169 | |

175 | |

182 | |

188 | |

196 | |

203 | |

207 | |

215 | |

223 | |

230 | |

254 | |

348 | |

353 | |

362 | |

388 | |

394 | |

415 | |

428 | |

435 | |

441 | |

454 | |

462 | |

469 | |

481 | |

494 | |

512 | |

521 | |

535 | |

544 | |

### Other editions - View all

### Common terms and phrases

algebraic arithmetical progression ascending powers becomes binomial called changing the sign clear clearly coefficients common logarithm compound quantity conse consequently corresponding cube root cx² decimal places denote derived function difference divide dividend division equa equal ratios equal roots evident EXAMPLES exponent expressed extract the square factors find the number follows fraction given equation gives greater greatest common divisor Hence imaginary roots inequality integer least common multiple less logarithm monomial multiplicand multiplier negative roots nth root number of terms numbers or quantities odd number polynomial positive integer positive roots proportion proposed equation quadratic quently quotient real roots remainder remaining roots represent result right member rule second term solution square root subtract supposed surds thence third term tion unknown letter whole number

### Popular passages

Page 374 - If A and B together can perform a piece of work in 8 days, A and C together in 9 days, and B and C in 10 days : how many days would it take each person to perform the same work alone ? Ans.

Page 307 - Multiply the complete divisor by the second term of the root, and subtract the product from the remainder.

Page 152 - A man and his wife usually drank out a cask of beer in 12 days ; but when the man was from, home, it lasted the woman 30 days ; how many days would the man be in drinking it alone ? Ans.

Page 141 - II. Divide the greater number by the less, writing the quotient between the verticals, the product under the dividend, and the remainder below. III. Divide the less number by the remainder, the last divisor by the last remainder, and so on, till nothing remains. The last divisor will be the greatest common divisor sought.

Page 347 - Three lines are in harmonical proportion, when the first is to the third, as the difference between the first and second, is to the difference between the second and third ; and the second is called a harmonic mean between the first and third. The expression 'harmonical proportion...

Page 161 - ... multiply each numerator by all the denominators, except its own, for a new numerator, and under it write the common denominator.

Page 215 - Or, four terms are in harmonical proportion, when the first is to the fourth as the difference of the first and second is to the difference of the third and fourth.

Page 375 - A, B, C, D, E play together on this condition, that he who loses shall give to all the rest as much as they already have. First A loses, then B, then C, then D, and at last also E. All lose in turn, and yet at the end of the 5th game they all have the same sum, viz. each $32. How much had each when they began to play ? Ans.

Page 209 - The first term, the last term (or the extremes) and the ratio given, to find the sum of the series. RULE. Multiply the last term by the ratio, and from the product subtract the first term ; then divide the remainder by the ratio, less by 1, and the quotient will be the sum of all the terms.

Page 173 - ... proportion, the sum of the extremes is equal to the sum of the means. Thus...