3 years ago

27w^2-12 how do factor this in special cases

Mathematics

1 answer:

JulsSmile [24]3 years ago

6 0

Answer:

Take out the greatest common factor

The GCF is 3

3(9w^2-4)

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Multiply using the rule for the square of a binomial.

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To solve:
(x-10)(x-10)

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2 years ago

Find y<br> I will give brainlist

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What is the surface area of 8ft 3ft 3ft 3ft

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✓<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B19%20%2B%20%20%5Csqrt%7B30%20%2B%20%20%5Csqrt%7B32%20%2B%20x%20%20%7D%20%7D%

Setler79 [48]

We'll have to repeatedly square both sides of the equation, in order to get rid of the square roots. Squaring a first time yields

$19+\sqrt{30+\sqrt{32+x}}=25$

Move the 19 to the right hand side:

$\sqrt{30+\sqrt{32+x}}=6$

And square again:

$30+\sqrt{32+x}=36 \iff \sqrt{32+x}=6$

Square one last time:

$32+x=36 \iff x=36-32=4$

Let's check the solutions: all these squaring might have created external solutions:

$\sqrt{19+\sqrt{30+\sqrt{32+4}}}=\sqrt{19+\sqrt{30+6}}=\sqrt{19+6}=\sqrt{25}=5$

So, $x=4$ is a feasible solution.

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3 years ago

There are 150 students in the band and 90 students in the chorus. One half of the band members and 4/5 of the chorus members par

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150 x 1/2 = 75
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3 members

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