Question

1. (7x + 3z)(7x-3z)

Find the product using the identity
(x+a)(x+b)=x²+(a+b)x+ab​

Answer 1

Answer:

49x²-9z²

Step-by-step explanation:

(7x)²+(3z-3z)x+(3z)(-3z)

49x²+0x-9z²

49x²-9z²

Answer 2

Answer:

hope it's help full for u.