Additional maths assignments
A) x race to power 4 minus 8x race to power 2 plus 1 equal to 0
B) x race to power 4 minus 5x race to power 2 minus 2 equals to 0
C) 2x race to power 4 plus x race to power 2 minus 5 equals to 0
D)2x race to power 6 minus 3x race to power 3 minus 8 equals to 0
E)3x race to power 6 minus 5x race to power 3 minus 2 equals to 0
F)2x race to power 8 minus 7x race to power 4 minus 3 equals to 0

Pls help me​