Question

plz answer fast with explanation.... Both questions plzz

Answer 1

1:-

(2x+3)³+64,

(2x+3)³+4³,

[(2x+3)+4][(2x+3)²+4²-(2x+3)×4],

(2x+7) [4x²+9+12x+16-8x-12],

(2x+7)[4x²+4x+13],


2:-

(1+a+b+ab)/(1+a),

[(1+a)+b(1+a)]/(1+a),

[(1+a)(1+b)]/(1+a),

(1+b)

Answer 2

explanation.... Both questions plzz