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Pepsi [2]
2 years ago
5

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

Mathematics
1 answer:
Vilka [71]2 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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3 years ago
A gumball machine has 78 gumballs. each person who puts a coin into the machine gets 3 gumballs. after a certain number of peopl
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8 0
3 years ago
Jose is thinking of a number.
alexira [117]

The number is 66.

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To find the number x using given conditions.

Start with the last condition.

It is less than 7 times 8 + 23 = 7 × 8 + 23 = 79

So, the number is less than 79 which implies x < 79.          

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