Subtract -6x^4-3x^2y^2+5y^4−6x
4
−3x
2
y
2
+5y
4
minus, 6, x, start superscript, 4, end superscript, minus, 3, x, squared, y, squared, plus, 5, y, start superscript, 4, end superscript from 2x^4-8x^2y^2-y^42x
4
−8x
2
y
2
−y
4