Question

Factorize the following perfectly:
1) 9x^4-16y^439
2) 64x^4+y^4

Answer 1

neither can be factored any further but if it is (9x^4) - (16y^4) it can be factored down to ((3x^2)+(4y^2)) ((3x^2)+(4y^2))

Explanation: