Question

(3x-4) (3x+5) in algebraic identity​

Answer 1

Answer:

Suitable identity is (x+a)(x+b)=x

2

+(a+b)x+ab

(3x+4)(3x−5)=(3x)

2

+(+4−5)3x+(4×−5)

9x

2

+(−1)3x+(−20)

9x

2

−3x−20 mark me branliest

Answer 2

Answer:

Suitable identity is (x+a)(x+b)=x2+(a+b)x+ab

(3x+4)(3x−5)=(3x)2+(+4−5)3x+(4×−5)

9x2+(−1)3x+(−20)

9x2−3x−20