3 years ago

What can expressions be simplified by combining?!

Mathematics

1 answer:

Nina [5.8K]3 years ago

5 0

Answer:

you can combine like term such as x or 2x, but not variables with different exponents like x and x squared.

Step-by-step explanation:

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xeze [42]

Answer:

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Step-by-step explanation:

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3 years ago

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If x2 = 30, what is the value of x?<br> A. ±60 B. ±15 C. ±square root of 30 D.±square root of 15

anygoal [31]

Answer:

C. ±square root of 30

Step-by-step explanation:

Apply the square root function to both sides of the equation:

$\sqrt{x^2}=\sqrt{30}\\\\|x|=\sqrt{30}\\\\x=\pm\sqrt{30}$

_____

The absolute value equation has two solutions. They match choice C.

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3 years ago

Multiply: (4x – 7)(2x – 9)

Marizza181 [45]

Hello there!

Let's use foil.

First: 4x * 2x = 8x^2

Outside: 4x * -9 = -36x

Inside: -7 * 2x = -14x

Last: -7 * -9 = 63

Now, let's combine these.

8x^2 - 36x - 14x + 63

Finally, we can simplify this

8x - 50x + 63

I hope I helped!

Let me know if you need anything else!

~ Zoe

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3 years ago

Triangle△ABC is rotated -120 about point P to create △ABC

yawa3891 [41]

Where’s point P at though

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2 3/4 written as fraction greater than one

sladkih [1.3K]

2 3/4 = 11/4 <=== written as an improper fraction

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3 years ago

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