Question

using identities, find the product (7a-6b) (7a+6b)​

Answer 1

Answer:

7a^2-6b^2

Step-by-step explanation:

[Using identity (a-b) (a+b)=a^2-b^2]

7a^2-6b^2

Answer 2

Answer:

$(7a - 6b)(7a + 6b) \\ identity \: iii = (a - b)(a + b) = {a}^{2} - {b }^{2} \\ = ({7a})^{2} - ({6b})^{2} \\ = 49a {}^{2} - 36b {}^{2}$