Question

Solve using identities (4x+5) l4x-7)

Answer 1

Heya mate , your answer is....

the identity used here is ...  (x+a)(x-b)

so , it will be opened by ....the formula derived $x^{2}$+(a-b)x-a*b

so, $4x^{2}$(5-7)4x-7*5

$16x^{2}$-2*4x-35

$16x^{2}$-8x-35

answer = $16x^{2}$-8x-35.......

hope it helps.......

plsee mark it as brainliest....