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3 years ago

Please answer as soon as possible!!! Will give brainlyest!!!!!!!!!!!

Mathematics

1 answer:

8_murik_8 [283]3 years ago

3 0

The correct answer is C.

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What is the simplified form of the following expression? 7(^3 square root 2x) - 3 (^3 square root 16x) -3 (^3 square root 8x)

Pachacha [2.7K]

Answer:

The third option listed: $\sqrt[3]{2x} -6\sqrt[3]{x}\\$

Step-by-step explanation:

We start by writing all the numerical factors inside the qubic roots in factor form (and if possible with exponent 3 so as to easily identify what can be extracted from the root):

$7\sqrt[3]{2x} -3\sqrt[3]{16x} -3\sqrt[3]{8x} =\\=7\sqrt[3]{2x} -3\sqrt[3]{2^32x} -3\sqrt[3]{2^3x} =\\=7\sqrt[3]{2x} -3*2\sqrt[3]{2x} -3*2\sqrt[3]{x}=\\=7\sqrt[3]{2x} -6\sqrt[3]{2x} -6\sqrt[3]{x}$

And now we combine all like terms (notice that the only two terms we can combine are the first two, which contain the exact same radical form:

$7\sqrt[3]{2x} -6\sqrt[3]{2x} -6\sqrt[3]{x}=\\=\sqrt[3]{2x} -6\sqrt[3]{x}$

Therefore this is the simplified radical expression: $\sqrt[3]{2x} -6\sqrt[3]{x}\\$

5 0

3 years ago

What is the slope of the equation-3=-4(x-5)

scZoUnD [109]

You need to simplify it first.
$-3=-4(x-5)$
Use distribution
$-3=-4x+20$
y=mx+b
m=slope
your slope is -4 :)

5 0

3 years ago

hi how are you how do i get the answers for my self because i am a teacher and get just the test with out the answer on them for

Daniel [21]

Well, I saw my teacher solving the test herself, and then grading papers off of her paper that she solved. My teacher made the answer key for the tests.

4 0

3 years ago

If f(x) = 7x − 1, what does f(12) represent?

olga2289 [7]

I think it is D, too. Did you submit the test yet?

8 0

3 years ago

Solve 6( x + 20) = 168

Licemer1 [7]

Answer: X=8

Step-by-step explanation:

168/6=28. x+20=28. 8+20=28.

6(8+20)=168

8 0

3 years ago

Read 2 more answers