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Mama L [17]
3 years ago
5

Choose the correct simplification of the expression (7x - 3) (4x2 – 3x - 6). (1 point)

Mathematics
1 answer:
steposvetlana [31]3 years ago
6 0

Answer:

Step-by-step explanation:

hello,

I assume that you want to develop the expression

(7x-3)(4x^2-3x-6)=7x(4x^2-3x-6)-3(4x^2-3x-6)\\= 28x^3-21x^2-42x-12x^2+9x+18\\\\=28x^3-33x^2-33x+18

hope this helps

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The value of x is......
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Expand &amp; simplify<br> (x+2)(x−3)(x+4)
belka [17]
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8 0
3 years ago
4.) 4(x+7)=-4+8x what is x?
UNO [17]
4x+28=-4+8x. 4x-8x=-4-28. -4x=-32. x=8
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3 years ago
Give the function for f(x)-5|x+1|+3 for what values of x is f(x)=-12
Lyrx [107]
I’m not sure whether there is a typo in the function but I might have the answer.

If f(x) = 5(x+1)+3 = -12 then you can solve for x.

5(x+1)+3 = -12
5x + 5 + 3 = -12 << expand the brackets
5x + 5 = - 15 << minus 3
x + 1 = -3 << divide everything by 5
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3 0
3 years ago
16 emails to 6 text messages- 10 emails to 4 text messages proportional or not
Pavel [41]

Given:

16 emails to 6 text messages- 10 emails to 4 text messages

To find:

Whether 16 emails to 6 text messages- 10 emails to 4 text messages proportional or not.

Solution:

Check the ratio of emails to text. If the ratios are equal then the relation is proportional.

16 emails to 6 text messages.

\dfrac{Emails}{Text}=\dfrac{16}{6}

\dfrac{Emails}{Text}=\dfrac{8}{3}

\dfrac{Emails}{Text}=8:3

10 emails to 4 text messages.

\dfrac{Emails}{Text}=\dfrac{10}{4}

\dfrac{Emails}{Text}=\dfrac{5}{2}

\dfrac{Emails}{Text}=5:2

Since \dfrac{8}{3}\neq \dfrac{5}{2} or 8:3\neq 5:2, therefore, it is not proportional.

5 0
3 years ago
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