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Mathematics 17 Online
OpenStudy (anonymous):

h^2-5h+3 when h=-2

OpenStudy (solomonzelman):

17

OpenStudy (anonymous):

plug in -2 as the h's.

OpenStudy (shamil98):

\[h^2 - 5h + 3 \] when h = -2 plug in two

OpenStudy (shamil98):

\[(-2)^2 -5(-2) + 3\]

OpenStudy (shamil98):

\[4 + 10 + 3 = 17\]

OpenStudy (anonymous):

Gotcha! I need help with one more... w^-2-5w+3 when w=-2

OpenStudy (solomonzelman):

17

OpenStudy (shamil98):

Try doing it. Just plug in the numbers :P

OpenStudy (anonymous):

I solved it by doing -4+10+3=9 but my teacher said I was wrong, why?

OpenStudy (solomonzelman):

same but with w

OpenStudy (shamil98):

Well, you have negative exponent.

OpenStudy (anonymous):

its +4

OpenStudy (solomonzelman):

it is +4

OpenStudy (anonymous):

even exponents make your number + but if it was an odd exponent it would be negative

OpenStudy (anonymous):

How did you guys get 4?

OpenStudy (shamil98):

w^-2-5w+3 when w=-2 w^-2 = 1/w^2 1/4 -5(-2) + 3

OpenStudy (shamil98):

Guys it is w^-2 which is 1/w^2

OpenStudy (anonymous):

Look at what I said Annetta

OpenStudy (anonymous):

Still confused /:

OpenStudy (anonymous):

Oh for the second one look at what sham said

OpenStudy (shamil98):

1/4 + 13 = 1/4 + 52/4 = 53/4

OpenStudy (anonymous):

-2*-2=4 -5*-2=10 4-10+3=-3?

OpenStudy (anonymous):

Why am I not getting 4 for the second one?

OpenStudy (anonymous):

lol

OpenStudy (shamil98):

You don't multiply by a negative exponent -_-

OpenStudy (shamil98):

w^-2 = 1/w^2

OpenStudy (anonymous):

|dw:1381806028466:dw|

OpenStudy (shamil98):

batman, would you care to take over? I would appreciate it..

OpenStudy (anonymous):

Ann, do you understand now?

OpenStudy (anonymous):

Ok, got it

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