 Th,e square of the sum of two numbers is equal to the square of the first number plus twice the product of the first and second, plus the square of the second.  Secondary-school Mathematics - Page 122by Robert Louis Short, William Harris Elson - 1910Full view - About this book
 | John Henry Walsh - Arithmetic - 1895 - 476 pages
...by 20 20s + 20 x 5 Multiplying by 5 - 20x5 + 5J 202 + 2(20 x 5) + 5s = 400 + 200 + 25 = 625. 1032. The square of the sum of two numbers is equal to the square of the first + twice the product of the first by the second + the square of the second. 13' = (10 + 3)' = 102+2(10x3)+32=?... | |
 | George Washington Hull - Algebra - 1895 - 358 pages
...quantities. PRINCIPLE I. The square of the mm of two quantities is equal to the square of the first, plus twice the product of the first and second, plus the square of the second. Thus, by multiplication, a + b a + b a1 + ab + ab + b' a1 + 2ab + b1 Also, (m + n)' = ти* + 2mn +... | |
 | John Henry Walsh - Arithmetic - 1895 - 480 pages
...Multiplying by 20 20s + 20 x 5 Multiplying by 5 20 x 5 +5' 20* + 2(20x5) + 5' = 400 + 200 + 25 = 625. 1032. The square of the sum of two numbers is equal to the uquare of the first + twice the product of the first by the second + the square of the second. 13'... | |
 | John Henry Walsh - Arithmetic - 1895 - 400 pages
...Multiplying by 20 202 + 20 X 5 Multiplying by 5 20 x 5 +5' 202 + 2(20 x 5) + 52 = 400 + 200 + 25 = 625. 1032. The square of the sum of two numbers is equal to the equate of the first + twice the product of the first by the second + the square of the second. 13z... | |
 | John Henry Walsh - 1897 - 424 pages
...by 20 202 + 20 x 5 Multiplying by 5 20 x 5 +5' 202 + 2 (20 x 5) + 5s = 400 + 200 + 25 = 625. 1032. The square of the sum of two numbers is equal to the square of the first + twice the product of the first by the second + the square of the second. 132 = (10 + 3)2 = 102+2(10x3)+3!... | |
 | Silas Ellsworth Coleman - Arithmetic - 1897 - 180 pages
...Since a and b may be any two numbers, we have the law : The square of the sum of two numbers equals the square of the first number plus twice the product of the numbers plus the square of the second number. The operation of squaring a number of two figures is... | |
 | John Henry Tanner - Algebra - 1904 - 398 pages
...+ b2.* This formula may be translated into words thus : the square of the sum of two numbers equals the square of the first number, plus twice the product of the two numbers, plus the square of the second number. etc. (ii) The square of the difference of two numbers.... | |
 | Samuel Jackson - 1904 - 434 pages
...Involution. In squaring and cubing numbers the following Algebraic principles are very useful : — (1) The square of the sum of two numbers is equal to the sum of the squares of the numbers 4- twice the product. (2) The square of the difference of two numbers... | |
 | John William Hopkins, Patrick Healy Underwood - Algebra - 1904 - 272 pages
...product is the differa2 — ab ence of a(a — 6) and b(a—b). Hence, The square of the difference of two numbers is equal to the square of the first number minus twice the product of the first number and the second number plus the square of the second number.... | |
 | Arthur Schultze - 1905 - 396 pages
...special mention : П. (а-6)2 = а2III. (а + 6) (а -6) = а2 -Ь3. Expressed in general language : I. The square of the sum of two numbers is equal to the square of the first, plus twice the product of the first and the second, plus the square of the second. II. The square of... | |
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