Answer to Question #207800 in Algebra for Princess

Question

Simplify the following expression 12x - (5x + 2),then fill in the values for A and B as indicated

Simplify the following expression 2(6x 5)-3(5x+4), then fill in the answers for A and B as indicated

Simplify the following expression 5x² + 7x-2x² - 10x + 5, then fill in the values for A, B and Cas indicated

Answer 1

1) $12x-(5x+2)$

$=7x-2$

$\therefore A=7,\space B=-2$

2) $2(6x -5)-3(5x+4)$

$=12x-10-15x-12$

$=-3x-22$

$\therefore A=-3,\space B=-22$

3) $5x² + 7x-2x² - 10x + 5$

$=3x^2-3x+5$

$\therefore A=3,\space B=-3,\space C=5$