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Mathematics 19 Online
OpenStudy (anonymous):

can u help with number 15

OpenStudy (anonymous):

Okay

OpenStudy (anonymous):

OpenStudy (anonymous):

\[9x^2 -15x + 4\]

OpenStudy (anonymous):

please explain how u got it to

OpenStudy (anonymous):

\[(3x - 2)^2 - 3x\]

OpenStudy (anonymous):

so the answer is d

OpenStudy (anonymous):

Nope, it's none of the above

OpenStudy (saifoo.khan):

where is -2?

OpenStudy (anonymous):

can u help with 16

OpenStudy (anonymous):

:-D I gave you a wrong answer

OpenStudy (anonymous):

i thought so lol no worries

OpenStudy (saifoo.khan):

d) -11

OpenStudy (anonymous):

how u get that

OpenStudy (anonymous):

hmm well just simplify (3x-2)^2-3(3x-2) expand distribute erc

OpenStudy (saifoo.khan):

4(4) - 2(4)^2 -16 -16 in f(x) -16 + 5 -11

OpenStudy (anonymous):

woops i told u the ans for 15.

OpenStudy (anonymous):

thanks

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