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" The same laws respecting the removal of parentheses hold true whether one or more terms are inclosed. Hence, when an expression within a parenthesis is preceded by a plus sign, the parenthesis may be removed. When an expression within a parenthesis is... "
Shorter Course in Algebra - Page 21
by George Albert Wentworth - 1886 - 165 pages
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Elements of Algebra

George Albert Wentworth - Algebra - 1881 - 406 pages
...appears that (1) a + (+b)=a + b. (2) a + (-6) = a — b. (3) a-(+b) = a — b. (4) a — (— b) = a The same laws respecting the removal of parentheses...if the sign of every term within the parenthesis be clianged. Thus : (1) a + (b — c) = a + b — c. (2) a — (b — c) = a — b + c. 55. Expressions...
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Elements of Algebra

George Albert Wentworth - Algebra - 1881 - 400 pages
...that (1) a + (+b) = a (2) a + (-b) = a — b. (3) a — (+6) = a — b. (4) a — (— b) = a + b. The same laws respecting the removal of parentheses...by a minus sign, the parenthesis may be removed if ilie sign of every term within the parenthesis be changed. Thus : (1) a + (b — c) = a + b — c....
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Elements of Algebra

George Albert Wentworth - 1883 - 536 pages
...appears that (1) a+(+^) = "+^ (2) a + (— ¿) = а-6. (3) a — (+b) = ab. (4) о — (-¿) = a + 6. The same laws respecting the removal of parentheses...term within the parenthesis be changed. Thus : (1) a + (b -c) = a + b -e, (2) a-(b -c) = a - b + c. 55. Expressions may occur with more than one parenthesis....
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Elements of Algebra

George Albert Wentworth - Algebra - 1885 - 318 pages
...PARENTHESES. 64. From (§ 52), it appears that (1) a (2) a + (- b) = a - b. (3) a-(+b) = ab. (4) a - (- b) = The same laws respecting the removal of parentheses...These parentheses may be removed in succession, by removing first, the innermost parenthesis ; next, the innermost of all that remain, and so on. Thus...
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Elements of Algebra

George Albert Wentworth - Algebra - 1885 - 548 pages
...appears that (1) a + (+b)=a (2) a + (— 6) = a — b. (3) a — (+5) = a — b. (4) a — (— b) = a The same laws respecting the removal of parentheses...minus sign, the parenthesis may be removed if the sign V~ of every term within the parenthesis be changed. Thus : (1) a + (b — c) = a + b — c. (2) a —...
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Elements of Algebra

George Albert Wentworth - Algebra - 1888 - 350 pages
...appears that (1) a + (+b-) = a + b. (2) a+(-b) = a - b. (3) a - (+b) = a - b. (4) a - (- 6) = a + i. The same laws respecting the removal of parentheses...minus sign, the parenthesis may be removed if the sinn of every term within the parenthesis be changed. Thus : (1) (2) a - (b - c) = a - b + c. 55. Expressions...
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A College Algebra

George Albert Wentworth - Algebra - 1888 - 514 pages
...(2) a + (- b) = a - b. (4) a — (— i) = a+ 6. The same laws respecting the removal of parenthesis hold true whether one or more terms are inclosed....removed if the sign of every term within the parenthesis is changed. Thus, (1) a+(b—c) = a + b — e. (2) a - (b - c) = a - b + c. 27. Observe that the terms...
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Elements of Algebra

George Albert Wentworth - Algebra - 1888 - 518 pages
...appears that (1) a + (+b) = a + b. (2) a + (-&) = a — b. (3) a — (+¿) = a — b. (4) a — (-A^ same laws respecting the removal of parentheses hold...minus sign, the parenthesis may be removed if the sinn of every term within the parenthesis be changed. Thus : (1) a + (b — e) = a + b — c. (2) a...
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A College Algebra

George Albert Wentworth - Algebra - 1888 - 514 pages
...inclosed. Hence, when an expression within a parenthesis is preceded by a plus sign, the parenthesis imiy be removed. When an expression within a parenthesis...removed if the sign of every term within the parenthesis is changed. Thus, (1) a + (bc) = a + b — c. (2) a-(Ь-е) = a — Ь + е, 27. Observe that the terms...
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College Algebra: For the Use of Academies, Colleges, and Scientific Schools ...

Edward Albert Bowser - Algebra - 1888 - 868 pages
...b+c— d+e), and so on. 33. Minus Sign before the Parenthesis. — When a parenthesis is preceded by the sign — , the parenthesis may be removed if the sign of every term within the parenthesis be changed . This rule has already been illustrated in Art. 29 ; it is in fact the rule for subtraction. The rule...
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