Add the following polynomials:
(3x27 + 4x20 – 6x11 + x) + (x26 + 6x20 + 8x11 – x)
Answer
3x27 + x26 + 10x20 + 2x11
(-2x10 + 13x7 – 4x + 9) + (7x10 – 12x7 – 8x – 1)
5x10 + x7 – 12x + 8
(17x2 + 14x + 3) + (-3x2 + 10)
14x2 + 14x + 13
(4x + xy – 2y) + (3x – 4xy + y2)
7x – 3xy – 2y + y2
(2x2y + 4xy2) + (3xy2 – x2y)
x2y + 7xy2
Subtract the following polynomials:
(4x2 – 3x + 9) – (2x2 + x + 1)
2x2 – 4x + 8
(7x3 + 2x – 4) – (-x3 + 3x – 5)
8x3 – x + 1
(-10x4 – 6x3 + x) – (-2x4 – x2 + 4x)
-8x4 – 6x3 + x2 – 3x
(2xy + x2y + 3xy4) – (xy – xy2 + 2xy4)
xy + x2y + xy2 + xy4
(-13x2y + 2xy – y2) – (-x2y + 2xy + y2)
-12x2y – 2y2
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