3 years ago

Factor by grouping. 5w+2w + 25w + 10

Mathematics

1 answer:

masha68 [24]3 years ago

7 0

Answer:

32w+10

Step-by-step explanation:

add all the w's then just add 10

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Step-by-step explanation:

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Step-by-step explanation:

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1 year ago

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Separate non-x terms from x terms

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Step-by-step explanation:

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3 years ago

Please show me how to solve for Xsquared - 21.75X = -15.75. I have the solution but do not know how to solve it.

Andreas93 [3]

$x^2-21.75x=-15.75 \\
x^2-21.75x+15.75=0$

Use the quadratic formula:
$x^2-21.75x+15.75=0 \\ \\
a=1 \\ b=-21.75 \\ c=15.75 \\ b^2-4ac=(-21.75)^2-4 \times 1 \times 15.75=473.0625-63=410.0625 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-(-21.75) \pm \sqrt{410.0625}}{2 \times 1}=\frac{21.75 \pm 20.25}{2} \\
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x=\frac{1.5}{2} \ \lor \ x=\frac{42}{2} \\
x=\frac{15}{20} \ \lor \ x=21 \\
x=\frac{3}{4} \ \lor \ x=21 \\
\boxed{x=\frac{3}{4} \hbox{ or } x=21}$

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3 years ago

Help me I’m not sure how to do this

maw [93]

Answer:

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Step-by-step explanation:

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2 years ago