Question

x⁴+x²-y²+y⁴
please help question​

Answer 1

x²(x²+1)

hope this is helpful

Answer 2

$x {}^{4} + x {}^{2} - y {}^{2} + y {}^{4} \\ = x {}^{6} - y {}^{6} \\ \\ hope \: it \: helps$