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Mathematics 9 Online
OpenStudy (oayala):

Evaluate 3x^2-4 FOR X=3 ??

OpenStudy (janu16):

So x is 3?

OpenStudy (oayala):

im not sure thats how the problem is I'm having a hard time

OpenStudy (janu16):

Is x is 3 then 3(3)^2 is 37 and subtract 4 is 23

OpenStudy (will.h):

Substitute 3 instead of x in the expression 3x^2 -4

OpenStudy (janu16):

Is that one of he choice?

OpenStudy (janu16):

I meant 27 not 37

OpenStudy (janu16):

So 27-4 is 23

OpenStudy (oayala):

my choices are 77, 23, -31, 15

OpenStudy (janu16):

Ya so 23

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