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3 years ago

-2x2+x+8=0 use the quadratic formula to solve the equation

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

5 0

X = -1 is the answer to -2x2+x+8=0

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Please help with 17 and/or 18

Marizza181 [45]

Answer:

Slope Intercept Form: y=3x+10

Slope: 3

y: 10

Step-by-step explanation:

y-3x=10 Add 3x to both sides. The y has to be isolated.

So it is y=10+3x So we have to reorder it so y=3x+10

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Question #2 What is the difference?

e-lub [12.9K]

Answer:

B $\frac{b-10}{b-1}$

Step-by-step explanation:

In order to get the same denominator, we need to multiply the second fraction by (b+2) in the numerator and denominator.

We will end up in something like this : $\frac{b^{2} - 2b - 8 -6(b+2) }{(b-1)(b+2)}$

I just timed the second fraction by b+ 2 and then i added them together.

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now factoring the numerator we will end like this

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we will then end up with the answer.

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3 years ago

Anika [276]

Answer:

Step-by-step explanation:

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