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Algebra 10 Online
OpenStudy (anonymous):

Let f(x) = 2x2 - 2x + 7 and g(x) = x2 + 9x - 6. Find f(x) - g(x). a. x2 - 11x + 13 b. x2 - 11x + 1 c. x2 + 7x + 1 d. x2 + 7x + 13

OpenStudy (jlg030597):

obviously 2x2-2x+7-x2+9x-6

OpenStudy (jlg030597):

thats wheres you start

OpenStudy (jlg030597):

or is that - an = sign

OpenStudy (anonymous):

no

OpenStudy (jlg030597):

ok so that equation is correct then

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

why is the x in front of the 2? Usually you put the number in front of the variable

OpenStudy (jlg030597):

so now simplify it and thats confusing

OpenStudy (jlg030597):

yah ^^^^^^^^^^

OpenStudy (anonymous):

and when you mean 2x2 do you mean 2x^2 (2x to the second power)

OpenStudy (anonymous):

thats why im confused

OpenStudy (anonymous):

yes

OpenStudy (jlg030597):

Its A or B i think

OpenStudy (jlg030597):

is that 2 * 2

OpenStudy (anonymous):

i was thinking a

OpenStudy (anonymous):

you should right 2x^2 not 2x2, you'll confuse people, and it will your answer might end up wrong

OpenStudy (anonymous):

i forgot to

OpenStudy (jlg030597):

ok so thatd be 4x

OpenStudy (jlg030597):

Your guess is right

OpenStudy (anonymous):

btw the answer is A because when you're subtracting a negative, it turns into a positive, so you add for example: 2-(-4) = 2+4+6

OpenStudy (anonymous):

ok

OpenStudy (jlg030597):

2x2-2x+7-x2+9x-6 4x-2x+7-x2+9x-6 2x+7-x2+9x-6 7-x2+11x-6 -x2+11x+13 or else x2-11x+13 A.

OpenStudy (jlg030597):

now i feel dumb for answering after you already did

OpenStudy (anonymous):

|dw:1396647435745:dw|

OpenStudy (anonymous):

oops -11x, not 7x my bad

OpenStudy (jlg030597):

your fine

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