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zhuklara [117]
3 years ago
12

Which expression is equivalent to -3.5(4x – 3)?

Mathematics
1 answer:
Masja [62]3 years ago
3 0
First, you need to solve the equation.

-3.5 * 4x = -14x
-3.5 * -3 = 10.5

C) -14x + 10.5

Hope this helps!



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Given the polynomial 2x3 + 18x2 − 18x − 162, what is the value of the coefficient 'k' in the factored form?2x3 + 18x2 − 18x − 16
s344n2d4d5 [400]

Answer:

k=3

Step-by-step explanation:

Let

f(x)=2x^3+18x^2-18x-162

We factor 2 to obtain;

f(x)=2(x^3+9x^2-9x-81)

We factor the polynomial within the parenthesis by grouping.

f(x)=2(x^2(x+9)-9(x+9)

f(x)=2(x^2-9)(x+9)

f(x)=2(x^2-3^2)(x+9)

We apply difference of two squares on the second factor: x^2-3^2=(x-3)(x+3)

f(x)=2(x+3)(x-3)(x+9)

We now compare to;

f(x)=2(x+k)(x-k)(x+9)

It is now obvious that k=3

6 0
3 years ago
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Step-by-step explanation:

Combine likes terms that have alike variables and alike exponents.

(3x^2 + 4x^2) + (2x) + (2 + 5)

7x^2 + 2x + 7

6 0
3 years ago
In deciding the best medium to tell a story, which step is first?(1 point)
zavuch27 [327]

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Step-by-step explanation:

6 0
2 years ago
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pentagon [3]
It’s the one you are on
5 0
2 years ago
You have a pickle recipe that requires 24 ounces of sugar. You want to make a triple batch of pickles. How many pounds of sugar
Maksim231197 [3]

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Hope this helps!

6 0
2 years ago
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