 If an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed ; but the sign of each term in the parenthesis must be changed; the sign + to — and the sign — to +. 155.  Algebra: First Course - Σελίδα 88των Edith Long, William Charles Brenke - 1913 - 283 σελίδεςΠλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | George Albert Wentworth - 1886 - 284 σελίδες
...a parenthesis is preceded by a plus sign, the parenthesis may be removed. When an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed if the sign of every term within the parenthesis be changed. Thus : (1) a+(b — c) = a + b — c.... | |
 | George Albert Wentworth - 1888 - 514 σελίδες
...a parenthesis is preceded by a plus sign, the parenthesis may be removed. When an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed if the sign of every term within the parenthesis is changed. Thus, (1) a+(b—c) = a + b — e. (2)... | |
 | George Albert Wentworth - 1891 - 544 σελίδες
...a parenthesis is preceded by a pins sign, the parenthesis may be removed. When an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed // the sign of every term within the parenthesis is changed. Thus, a + (b - c) = a + Ъ - с. a —... | |
 | Frank H. Hall - 1898 - 326 σελίδες
...parenthesis may be removed without making any changes in the signs of the terms. II. If an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed ; but the sign of each term in the parenthesis must be changed ; the sign -\- to -, and the sign -... | |
 | Frank H. Hall - 1898 - 296 σελίδες
...parenthesis may be removed without making any changes in the signs of the terms. II. If an expression within a parenthesis is preceded by a minus sign , the parenthesis may be removed ; but the sign of each term in the parenthesis must be changed ; the sign -f- to -, and the sign -... | |
 | Frank H. Hall - 1898 - 332 σελίδες
...parenthesis may be removed without making any changes i>i the signs of the terms. II. 2f an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed ; but the sign of each term in the parenthesis must be changed ; the sign -\- to -, and the sign -... | |
 | Frank H. Hall - 1898 - 298 σελίδες
...parenthesis may be removed without making any changes in the signs of the terms. II. If an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed; but the sign of each term in the parenthesis must be changed ; the sign -\- to -, and the sign - to... | |
 | Frank H. Hall - 1899 - 456 σελίδες
...parenthesis may be removed without making any changes in the signs of the terms, II. If an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed; but the sign of each termin the parenthesis must be changed; the sign +-to -, and the sign — to +.... | |
 | Alvord D. Robinson - 1902 - 652 σελίδες
...parenthesis may be removed without changing a sign in the expression •within the parenthesis. 2. If a parenthesis is preceded by a minus sign, The parenthesis may be removed, but every sign in the expression within the parenthesis must be changed. For the Pupil : Remove the... | |
 | Frank H. Hall - 1903 - 398 σελίδες
...parenthesis may be removed without making any changes in the signs of the terms. II. If an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed ; but the sign of each term in the parenthesis must be changed; the sign + to — and the sign —... | |
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