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guajiro [1.7K]
3 years ago
9

-3(x + 2)2 + 4 = -8 what’s the answer

Mathematics
2 answers:
podryga [215]3 years ago
8 0
X=0

-3(0+2)2+4 distribute -3 to the parentheses-PEMDAS
(0-6)2+4 multiply 2 by the parentheses
(0-12)+4 solve the equation
= -8
Gnesinka [82]3 years ago
7 0

Answer:

x = 0

Step-by-step explanation:

First, multiply the -3 by two (<u>-3</u>(x + 2)<u>2</u> + 4 = -8) -- -6(x+2)+4 = -8.

Then, subtract 4 from both sides (-6(x+2)+<u>4</u> = -8) -- -6(x+2) = -12

After that, divide both sides by -6 (<u>-6</u>(x+2) = -8) -- \frac{-6\left(x+2\right)}{-6}=\frac{-12}{-6}

Simplify -- x+2=2

Subtract 2 from both sides (x+<u>2</u>=2) -- x = 0

Hope this helped! Good luck with future math problems :)

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What is 2/9 = 4/x+8 i dont get this fraction solving
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♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

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♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

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\left\{\begin{array}{ccc}x-4y=28\\2x+y=2&\text{multiply both sides by 4}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}x-4y=28\\8x+4y=8\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad9x=36\qquad\text{divide both sides by 9}\\.\qquad\boxed{x=4}\\\\\text{Put the value of x to the second equation:}\\\\2(4)+y=2\\8+y=2\qquad\text{subtract 8 from both sides}\\\boxed{y=-6}\\\\Answer:\ \boxed{x=4\ and\ y=-6\to(4,\ -6)}

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