Question

(ab? + 13b - 4a) + (3ab² + a +76)

Answer 1

ab+13b-3a+3ab^2+76

Explanation:

(ab?+13b-4a)+(3ab^2+a+76)

ab+13b-4a+3ab^2+a+76

collect like term

. -4a a

.

.

ab+13b-3a+3ab^2+76