Question

Using suitable identity find the product (3y+7) (3y+7)​

Answer 1

Answer:

The answer is 9y²+42y+49

Step-by-step explanation:

(3y+7) (3y+7)

9y²+21y+21y+49

9y²+42y+49

Hope it will help you

Answer 2

Answer:

9y²+42y+49

Step-by-step explanation:

(3y+7)(3y+7)=(3y+7)²

.

Since, (a+b)²=a²+2ab+b²

.

Therefore,

(3y+7)²=(3y)²+2(3y)(7)+(7)²

=9y²+42y+49

.

Put this answer in your a** mf:D