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2 years ago

Will give brainliest please show your work

Mathematics

2 answers:

Musya8 [376]2 years ago

8 0

Take all the measurements and multiply each one by 2 because there are 2 sides for each measurement and then add your answers all up to get your final answer. For example: here’s what I did for problem 1

Oksanka [162]2 years ago

5 0

Answer:

Step-by-step explanation:

For surface area you wanna find the area of all the sides and then add them up to get surface area

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Factor completely 8x2 − 4x − 84. 4(2x − 3)(x 7) 4(2x 3)(x − 7) 4(x − 3)(2x 7) 4(x 3)(2x − 7).

gizmo_the_mogwai [7]

The factor of the given equation $8x^{2} -4x-84$ will be $4(x+3)(2x-7)$

<h3>What will be the factor of the given equation?</h3>

Given equation is $8x^{2} -4x-84$

Now taking 2 commons from the equation

$4(2x^{2} -x-21)$

now splitting the equation we get

$4(2x^{2} +6x-7x-21)$

$4(2x(x+3)-7(x+3))$

$4(x+3)(2x-7)$

Thus the factor of the given equation $8x^{2} -4x-84$ will be

$4(x+3)(2x-7)$

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