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Pepsi [2]
3 years ago
5

Find the difference of the following polynomials: (-2r4 + 3r3 - 10) and (4r4 - p3 + 2r2 + 7).

Mathematics
1 answer:
Vilka [71]3 years ago
4 0

-6 r^{4}+4 r^{3}-2 r^{2}-17 is the difference between -2 r^{4}+3 r^{3}-20 \text { and } 4 r^{4}-p^{3}+2 r^{2}+7

Step-by-step explanation:

Given equations,

-2 r^{4}+3 r^{3}-20 \text { and } 4 r^{4}-p^{3}+2 r^{2}+7

Difference of the polynomial is written as

=-2 r^{4}+3 r^{3}-20-\left(4 r^{4}-p^{3}+2 r^{2}+7\right)

Open the brackets and multiply with -1 the whole expression \left(4 r^{4}-p^{3}+2 r^{2}+7\right) becomes

=-2 r^{4}+3 r^{3}-20-4 r^{4}+p^{3}-2 r^{2}-7

=-6 r^{4}+4 r^{3}-2 r^{2}-17

This is the difference of given two polynomials is -6 r^{4}+4 r^{3}-2 r^{2}-17.

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