Question

18a^2-50

Using Identity​

Answer 1

Answer:

i hope it will help you

Step-by-step explanation:

its is step bye step explanation

Answer 2

Answer:

1st step...2(9a^2-25)

2nd step...2{(3a)^2-(5)^2

3rd step...2{(3a-5) (3a+5)} {a^2-b^2=(a-b) (a+b)}

Explanation:

1st step...by taking common number 2 out.

2nd step... by breaking down the square numbers in square roots.

3rd step... by using identity