What must be added or subtracted from the polynomial is exactly divisi

1.	What must be added or subtracted from the polynomial is exactly divisible by x squared +2x-3.
Answer» f(x) = x4 + 2x3 - 2x2 + x - 1Remainder = -x + 2Therefore, we should add –(–x+ 2) to make it divisible exactly by x2 + 2x – 3.Thus, we should add x – 2 to x4 + 2x3 – 2x2 + x – 1 .

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