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3 years ago

Factor this trinomial completely. 2x + 10x + 8

Mathematics

1 answer:

Anastaziya [24]3 years ago

8 0

Answer:

4(3x+2)

Step-by-step explanation:

Find the GCF (greatest common factor).

GCF=2

Factor out the GCF.

$2(\frac{2x}{x}+\frac{10x}{2}+\frac{8}{2})$

Simplify.

2(x+5x+4)

Collect the like terms x and 5x.

2(6x+4)

Factor out the number 2, because 2*3=6 and 2*2=4.

2*2(3x+2)

Simplify to get the answer.

4(3x+2)

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Write an equivalent expression to 9y -1/2(4y+20)

Leya [2.2K]

An equivalent expression could just be one that is simplified. So we get 9y - 2y - 10 if we distribute the 1/2, which is 7y - 10.
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4 years ago

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To get a B in math, Alexandria Pappas must average 80 on five tests. Scores on the first four tests were 82,74,82,and 74.Wha

motikmotik

Answer:

88 score.

Step-by-step explanation:

Given:

To get a B in math, Alexandria Pappas must<u> average 80</u> on five tests.

Scores on the first four tests were <em>82, 74, 82, and 74.</em>

Question asked:

What is the lowest score that she can get on the last test and still get a B?

Solution:

Let lowest score she can get on the last test = $x$

As we know:

$Average=\frac{Sum\ of \ observations}{Number\ of\ observations}\\ \\ 80=\frac{82+74+82+74+x}{5} \\ \\$

By cross multiplication:-

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4 years ago

Solve the equation using the quadratic formula. x^2-4x+3=0

almond37 [142]

Let's solve your equation step-by-step.

x2−4x+3=0

Step 1: Factor left side of equation.

(x−1)(x−3)=0

Step 2: Set factors equal to 0.
x-1=0 or x-3=0

For this one add one on both sides
x−1+1=0+1 x=1
For this one add 3 on both sides
x−3+3=0+3. x=3

x=1 or x=3

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3 years ago