2 years ago

Factor completely 5x2 − 5x − 100.

1 answer:

4 0

First, factor out 5:
5 (x² -x -20)
We need two numbers that add to -1 and multiply to -20. -5 and 4 satisfy this.
5(x-5)(x+4)

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maxonik [38]

Answer:

i think the area is 21 srry if im wrong

Step-by-step explanation:

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azamat

Answer:

Step-by-step explanation:

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dsp73

(5/6) * 360 = 1800/6 = 300
I wish I could explain this to you but im really bad at explain. I hope you still like this answer ;)

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3 years ago

SpyIntel [72]

For this case we have the following functions:

$f (x) = 2x ^ 2-18\\g (x) = - 3x-7$

We must find:

$(f-g) (2)$

By definition, we have to:

$(f-g) (x) = f (x) -g (x)$

So:

$(f-g) (x) = 2x ^ 2-18 - (- 3x-7)\\(f-g) (x) = 2x ^ 2-18 + 3x + 7\\(f-g) (x) = 2x ^ 2 + 3x-11$

Then, we evaluate in x = 2:

$(f-g) (2) = 2 (2) ^ 2 + 3 (2) -11\\(f-g) (2) = 2 (4) + 6-11\\(f-g) (2) = 8 + 6-11\\(f-g) (2) = 8 + 6-11\\(f-g) (2) = 3$

ANswer:

$(f-g) (2) = 3$

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2 years ago

ehidna [41]

5+5=100000 ppppppppppppo

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2 years ago