Question

(-3x+7) (12x+3) solve​

Answer 1

Step-by-step explanation:

x in (-oo:+oo)

(2/3)*x-((7/12)*x) = 3 // - 3

(2/3)*x-((7/12)*x)-3 = 0

(2/3)*x+(-7/12)*x-3 = 0

1/12*x-3 = 0 // + 3

1/12*x = 3 // : 1/12

x = 3/1/12

x = 36

x = 36

Answer 2

Answer:

$( - 3x + 7)(12x + 3) \\ =12x ( - 3x + 7) + 3( - 3x + 7) \\ = { - 36x}^{2} + 84x - 9x + 21 \\ = { - 36x}^{2} + 75x + 21$