Simplify this equation

Question

Simplify completely: square root of 245g^4 h^4

Answer 1

square root of 245g^4 h^4

( 7√5)g^2h^2

Explain

(g^2) x (g^2) = g^4

therefore sq root of g^4= g^2

same for h

245 not a perfect square - but

245/5=49 (which is a perfect square)