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1 year ago

6

Select the expressions that are equivalent to 12x - 6.

2 answers:

krek1111 [17]1 year ago

6 0

Answer:

B and E

Step-by-step explanation:

A.

-6(2x - 1)
Distribute the -6.

-12x + 6

B.

6(2x - 1)
Distribute the 6.

12x - 6

C.

6x(2 - 1)

Subtract inside parenthesis.

6x(1)
Multiply.

6x

D.

-6x(2x - 1)
Distribute the -6x.

-12x² + 6x

E.

-6(-2x + 1)
Distribute the -6.

12x - 6

F.

6x(-2x + 1)

Distribute the 6x.

-12x² + 6x

aleksandr82 [10.1K]1 year ago

5 0

The answers are B and E

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Consider the equation below.

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Equation in square form:

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Extreme value:

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Step-by-step explanation:

We are given

$y=3x^2+30x+71$

we can complete square

$y=3(x^2+10x)+71$

we can use formula

$a^2+2ab+b^2=(a+b)^2$

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$y=3(x^2+2\times x\times 5+5^2-5^2)+71$

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$y=3(x+5)^2-4$

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we know that this parabola

and vertex of parabola always at extreme values

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