Question

select asuitable identity and the following products​

Answer 1

Step-by-step explanation:

We have,

(2b-a)(2b+c)

To find, the products (2b-a)(2b+c)=?

Using identity,

(x+A)(x-B)=x^{2} +(A-B)x-AB

∴ (2b+c)(2b-a)

Here, x = 2b, A = c and B = a

∴ (2b+c)(2b-a)

=x^{2} +(c-a)x-ca

=x^{2} +(c-a)x-ac

Hence, the products (2b-a)(2b+c)=x^{2} +(c-a)x-ac

thankyou

Answer 2

$\bf\red{Refer~ To ~Image……!!!!}$