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emmainna [20.7K]
3 years ago
9

Which value of x makes the equation -5(x-3)=-25​

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
4 0

Answer:

x=8

Step-by-step explanation:

-5(x-3)=-25

Divide each side by -5

-5/-5(x-3)=-25/-5

x-3 = 5

Add 3 to each side

x-3+3 = 5+3

x = 8

Leviafan [203]3 years ago
3 0

Answer:

x =  - 5.6

Step-by-step explanation:

- 5(x - 3) =  - 25 \\  - 5x + 3 =  - 25 \\  - 5x =  - 25 - 3 \\  - 5x =  - 28 \\  \frac{ - 5x}{ - 5}  =  \frac{ - 28}{ - 5}  \\ x =  - 5.6

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Answer quickly please
KIM [24]

The correct answer is C.


You can tell this by factoring the equation to get the zeros. To start, pull out the greatest common factor.


f(x) = x^4 + x^3 - 2x^2


Since each term has at least x^2, we can factor it out.


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


Now we can factor the inside by looking for factors of the constant, which is 2, that add up to the coefficient of x. 2 and -1 both add up to 1 and multiply to -2. So, we place these two numbers in parenthesis with an x.


f(x) = x^2(x + 2)(x - 1)


Now we can also separate the x^2 into 2 x's.


f(x) = (x)(x)(x + 2)(x - 1)


To find the zeros, we need to set them all equal to 0


x = 0


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x = 1


Since there are two 0's, we know the graph just touches there. Since there are 1 of the other two numbers, we know that it crosses there.

4 0
3 years ago
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Verizon [17]
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5 0
3 years ago
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Very confused on this one :/ 72 points
bezimeni [28]

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Step-by-step explanation:

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Hope this helps.
8 0
3 years ago
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