Multiply the following:(a2 - b2), (a2 + b2)

The multiplication is as follows:(a2-b2)×(a2 + b2)= (a2.a2 + a2.b2-b2.a2-b2.b2)= a4 + a2b2-a2b2-b4= a4 + 0-b4= a4-b4The product is = a4-b4

Q83 of 128 Page 224

Multiply the following:
(a² - b²), (a² + b²)

The multiplication is as follows:

(a²-b²)×(a² + b²)

= (a².a² + a².b²-b².a²-b².b²)

= a⁴ + a²b²-a²b²-b⁴

= a⁴ + 0-b⁴

= a⁴-b⁴

The product is = a⁴-b⁴

Multiply the following:

b³, 3b², 7ab⁵

Multiply the following:

rs; r³s²

Multiply the following:

(ab + c), (ab + c)

Multiply the following:

(pq- 2r), (pq- 2r)