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weeeeeb [17]
3 years ago
8

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Mathematics
2 answers:
sesenic [268]3 years ago
4 0
<span>4x^3 + x^2 – 8x – 2
= (</span>4x^3 + x^2) – (8x + 2)
= x^2 (4x + 1) - 2(4x + 1)
= (x^2 - 2)(4x +1) 

hope that helps
ivann1987 [24]3 years ago
4 0

Answer:

A) x2(4x + 1) – 2(4x + 1)

Step-by-step explanation:

Edg

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Answer: 4

<u>Explanation:</u>

f(x) = 2x - 1

f(√2) = 2√2 - 1

f(1) = 2(1) - 1

     =  2 - 1

     =     1

f(√3)  = 2√3 - 1

*******************************************************

\frac{f(\sqrt{2})-f(1)}{\sqrt{2}-1} +\frac{f(\sqrt{3})-f(\sqrt{2})}{\sqrt{3}-\sqrt{2}}

= \frac{(2\sqrt{2}-1)-1}{\sqrt{2}-1} +\frac{(2\sqrt{3}-1)-(2\sqrt{2}-1)}{\sqrt{3}-\sqrt{2}}

= \frac{2\sqrt{2}-2}{\sqrt{2}-1} +\frac{2\sqrt{3}-2\sqrt{2}}{\sqrt{3}-\sqrt{2}}

= \frac{2\sqrt{2}-2}{\sqrt{2}-1}(\frac{\sqrt{2}+1}{\sqrt{2}+1})+\frac{2\sqrt{3}-2\sqrt{2}}{\sqrt{3}-\sqrt{2}}(\frac{\sqrt{3}+\sqrt{2}}{\sqrt{3}+\sqrt{2}})

= \frac{4+2\sqrt{2}-2\sqrt{2}-2}{2 - 1} + \frac{6 +2\sqrt{6}-2\sqrt{6}-4}{3-2}

= \frac{2}{1} +\frac{2}{1}

= 4

3 0
3 years ago
Help I don’t understand this
AlekseyPX

Answer: 90 degrees

Step-by-step explanation: Each of these angles are at 90 degrees since there is a square box at each of their second points.

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To convert a meter measurement to a foot measurement, multiply the length by the conversion ratio. The length in feet is equal to the meters multiplied by 3.28084.

Step-by-step explanation:

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Answer:

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work for answer: 9.50 x 43 = 408.5

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7 0
3 years ago
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