Question

(x²+y²) (x²-y²) find using identity​

Answer 1

Step-by-step explanation:

x⁴ - y⁴

using identity a² - b² = (a - b)(a +b)

here a = x² and b = y²

so, (x²)² - (y²)² = x⁴ - y⁴

hope it helps you

thank you

Answer 2

Answer:

x⁴-y⁴

Step-by-step explanation:

(x²+y²)(x²-y²)

it is in the form of (a+b)(a-b)=a²-b²

a=x²,b=y²

(x²+y²)(x²-y²)=(x²)²-(y²)²

(x²+y²)(x²-y²)=x⁴-y⁴