Question

Using algebraic identities, find the following products: (7xy-2)(7xy+7)​

Answer 1

Step-by-step explanation:

(7xy)^2 -(2)^2

49x^2y^2-4

Answer 2

Answer:

(x+a) (x+b)

7xy(7xy +7)+(-2)(7xy+7)

49x2y2+49xy-14xy-14

49x2y2+35xy-14