Question

(a 2 + b 2 ) (– a 2 + b 2 ) use suitable idendity

Answer 1

Answer:

(b⁴-a⁴)

Step-by-step explanation:

(a²+b²)(-a²+b²)

= (-a²)²+(b²)²

= (-a⁴+b⁴)

= (b⁴-a⁴)

using formula (x+y) (x-y) = x²-y²