Question

Very short answer:
What must be subtracted from (-2x2 + x) to get x?-









$pls \: do \: it \: for \: me$
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Answer 1

Answer:

we should add 4 means -(-4)

so we should subtract -4

hpoe it will help u

Answer 2

Step-by-step explanation:

let the polynomial to be subtracted be p(x)

x4-x3+x2-4x+8

=x4+2x3-3x+7-p(x) =x3+x-2+x-1

=4-x3+2x2-x2-3x-x+7+1=p(x)

p(x) =x4-x3+x2-4x+8