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soldi70 [24.7K]
2 years ago
14

Omar grouped the terms and factored the GCF out of the groups of the polynomial 3x3 – 15x2 – 4x + 20. His work is shown.

Mathematics
2 answers:
Phoenix [80]2 years ago
4 0

Answer:

2nd option

Step-by-step explanation:

Given

3x³ - 15x² - 4x + 20

step 1 ( group the first/second and third/fourth terms )

(3x³ - 15x² ) + (- 4x + 20)

step  2 ( factor each group )

3x² (x - 5) - 4(x - 5) ← note factor of - 4 ( not + 4 )

step 3 ( factor out (x - 5) from each term )

(x - 5)(3x² - 4)

lisabon 2012 [21]2 years ago
4 0

Answer:

ITS D !!!!

Step-by-step explanation:

got it right on test

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

j=6

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Rewrite the equation. So let's do that-

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Nastasia [14]

Answer:

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I couldn't do 19.) and 20.) for you because there are weird symbols that I believe you mistakenly input. But I'm sure you now get the gist of how to solve such problems. Peace <3

Step-by-step explanation:

All you really have to do for all of the problems is substitute your value of "x" for the function.

17.) f(x) = 8x - 7; f(x) =17

    17 = 8x -7  ---- substitute 17 for f(x), add 7 on both sides

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