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3 years ago

What is the simplified form of this expression?

Mathematics

1 answer:

Rasek [7]3 years ago

3 0

Answer:

B. -7 $x^{2}$ + 3x + 5

Step-by-step explanation:

(-3 $x^{2}$ + x + 5) - (4 $x^{2}$ - 2x)

-3 $x^{2}$ + x + 5 - 4 $x^{2}$ - 2x

Combine like terms

-3 $x^{2}$ - 4 $x^{2}$ = -7 $x^{2}$

x - -2x = x + 2x = 3x

-7 $x^{2}$ + 3x + 5

I hope this helps :))

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2 years ago

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Answer:

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Step-by-step explanation:

Formula for midpoint is $(\frac{x_{1} + x_{2} }{2} ,\frac{y_{1} + y_{2} }{2} )$

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