Question

Express with rational denominator b^2 / (a^2+b^2) +a

Answer 1

(a2+b2) + a = 0

a2 + b2 = -a

Square on both sides

a2^2 + b2^2 = a^2

b2^2 = a2^2 - a^2

b2^2 = a

a = b2/^2