3 years ago

What are the factors of 3x^2 + 23x − 8?

Mathematics

1 answer:

Margaret [11]3 years ago

8 0

3x² + 23x − 8 = 3x² + 24x - x - 8 = 3x(x+8) - (x+8) = (x+8)(3x-1)

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Answer:

$-1.30\ and\ -7.70$ (2 decimal places)

Step-by-step explanation:

Quadratic Formula: $x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

-----------------------------------------------

$x^2+9x+10=0$

Plug in values:

$x=\frac{-9\pm \sqrt{9^2-4\cdot \:1\cdot \:10}}{2\cdot \:1}$

First value of x:

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Second value of x:

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