How much greater is $(20 x^{7} - 10 x^{6} - 9 x^{5} - 14 x^{4} + 18 x) + (- 6 x^{6} - 12 x^{5} - 9 x^{4} - 9 x)$ $(20x^7 - 10x^6 - 9x^5 - 14x^4 + 18x) + (-6x^6 - 12x^5 - 9x^4 - 9x)$ ?

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How much greater is $(20 x^{7} - 10 x^{6} - 9 x^{5} - 14 x^{4} + 18 x) + (- 6 x^{6} - 12 x^{5} - 9 x^{4} - 9 x)$ $(20x^7 - 10x^6 - 9x^5 - 14x^4 + 18x) + (-6x^6 - 12x^5 - 9x^4 - 9x)$ ?

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Answer 1 · 2018-02-06T10:37:07

$= 20 x^{7} - 16 x^{6} - 21 x^{5} - 23 x^{4} + 9 x$ $=20x^7-16x^6-21x^5-23x^4+9x$

Explanation:

$(20 x^{7} - 10 x^{6} - 9 x^{5} - 14 x^{4} + 18 x) + (- 6 x^{6} - 12 x^{5} - 9 x^{4} - 9 x)$ $(20x^7-10x^6-9x^5-14x^4+18x) + (-6x^6-12x^5-9x^4-9x)$
Index Coefficient
7 -------------- $(+ 20 + 0) = + 20$ $(+20+0) =+20$
6 -------------- $(- 10 - 6) = - 16$ $(-10-6)=-16$
5--------------- $(- 9 - 12) = - 21$ $(-9-12)=-21$
4--------------- $(- 14 - 9) = - 23$ $(-14-9)=-23$
1--------------- $(+ 18 - 9) = + 9$ $(+18-9)=+9$
Thus,
$= 20 x^{7} - 16 x^{6} - 21 x^{5} - 23 x^{4} + 9 x$ $=20x^7-16x^6-21x^5-23x^4+9x$

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How much greater is $(20 x^{7} - 10 x^{6} - 9 x^{5} - 14 x^{4} + 18 x) + (- 6 x^{6} - 12 x^{5} - 9 x^{4} - 9 x)$ $(20x^7 - 10x^6 - 9x^5 - 14x^4 + 18x) + (-6x^6 - 12x^5 - 9x^4 - 9x)$ ?

1 Answer

Explanation:

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Science

Math

Humanities

... and beyond

How much greater is (20x^7 - 10x^6 - 9x^5 - 14x^4 + 18x) + (-6x^6 - 12x^5 - 9x^4 - 9x)(20x7−10x6−9x5−14x4+18x)+(−6x6−12x5−9x4−9x)(20x^7 - 10x^6 - 9x^5 - 14x^4 + 18x) + (-6x^6 - 12x^5 - 9x^4 - 9x)?

1 Answer

Explanation:

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Impact of this question

How much greater is $(20 x^{7} - 10 x^{6} - 9 x^{5} - 14 x^{4} + 18 x) + (- 6 x^{6} - 12 x^{5} - 9 x^{4} - 9 x)$ $(20x^7 - 10x^6 - 9x^5 - 14x^4 + 18x) + (-6x^6 - 12x^5 - 9x^4 - 9x)$ ?