Question

Replace * with a monomial so that the expression can be rewritten as a square of a sum or difference.
*+56a+49

Answer 1

Step-by-step explanation:

56a = 2 × 4a× 7

49 =7²

it's in form 2ab+b²

to make it perfect square add a² where a=4a, b=7

so we have to add (4a)²=16a²

16a²+56a+49 = (4a+7)²