Question

(-4x-7)(4 x + 3)
use identity
(x+a)(x-b)= x²+(a+b)x+ab
prove it​

it's urgent ​

Answer 1

Answer:

hope it will help you dude...

Answer 2

Step-by-step explanation:

Hi!

(-4x - 7)(4x + 3) = 0

-1(4x + 7) (4x + 3) = 0

(4x +7) (4x+3) = 0/-1

(4x)² + (7+3)4x +(3)(7) ....[by using identity]

4x² + 40x + 21

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