Question

Use the identity :- (x+a) (x+b) = x² + (a+b) x + ab solve :-
1.) (x +3 ) (x + 7 )
write step by step explanation

Answer 1

Answer:

I hope it will help u dear........

Answer 2

Answer:

(x+3) (x+7)

Using (x+a) (x+b) = xsquare + (a+b)x + ab

x square + (3+7)x + (3 multiply 7)

x square + 10x + 21