Question

simplify: )x-7y) (x+7y) Using identities ​

Answer 1

Answer:

x^2 -49y^2

Step-by-step explanation:

(x-7)(x+7y)                       [(a+b)(a-b) = a^2 - b^2]

=x^2 - (7y)^2

= x^2 - 49y^2