Question

simplify (x²+y²)² . algebraic expressions and identities​

Answer 1

Answer:

( a + b) 2 = a2 + 2ab + b2.

( x2 + y2) 2 = ( x2) 2 + 2×x2× y2 + (y2) 2

= x4 + 2 x2 y2 + y4