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PSYCHO15rus [73]
4 years ago
12

Simplify the expression (4x − 3)(x + 5).

Mathematics
1 answer:
Alexxx [7]4 years ago
8 0

Answer:

5x + 2

Step-by-step explanation:

(4x - 3)(x + 5)

Start by combining like terms.

4x + x = 5x   -3 + 5 = 2

5x + 2

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3 0
3 years ago
Rationalize the denominator.
AlekseyPX

Hello and Good Morning/Afternoon!

<u>Let's take this problem step-by-step</u>:

<u>What the problem asks for:</u>

  ⇒ to rationalize the denominator

      ⇒ rationalize means that you multiply the numerator and

          demonimator by the denominator

<u>Let's put that into action</u>:

    \frac{\sqrt{a +1}-2 }{\sqrt{a+1}+2 } * \frac{\sqrt{a +1}+2 }{\sqrt{a+1}+2 }\\=\frac{a +1-4 }{a+1+4\sqrt{a+1}+4  } \\=\frac{a-3}{a+4\sqrt{a+1}+5 }<== <u>Answer</u>

<u></u>

Hopefully that helps!

4 0
2 years ago
Which pair of numbers have a greatest common factor of 7?
ella [17]
<span>The GCF is the number that is a factor of both (or all) of the numbers of a given set and which is the biggest factor of this kind (often the smaller number of the two)

7 and 14 have a greatest common factor of 7.

 28 and 7 also have a GCF of 7, so the first two responses fit.

21 and 3 have a GCF of 3, so that isn't correct.

7 and 1 have a GCF of 1, so that's incorrect as well.</span>
3 0
4 years ago
Read 2 more answers
How would you solve this
nika2105 [10]
To find 10% you would just divide 200 by 10
=200/10
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hope this helped !
3 0
3 years ago
Gina says that for all real numbers a and b, ab=ba. is this statement true or false? If false, give a counterexample
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Answer:

True

Step-by-step explanation:

The communative property states that the order in addition and multiplication dosen't matter.

6 0
3 years ago
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