Posted by kelly on Wednesday, July 13, 2011 at 12:40am.
Please help
f(x) = 3x² + 2
x= 3
my question, do I start by solving x² first then multiply by 3 and adding 2
f(3= 3 * 9 + 2 = 29
or do I multiply first
3*3 =9² +2 = 83
I'm pretty sure we resolve the exponents first but need some help

algebra  Capreeca, Wednesday, July 13, 2011 at 1:21am
sub in 3 for x

algebra  Reiny, Wednesday, July 13, 2011 at 9:07am
Use BEDMAS
B  brackets, (if any)
E  exponents
D  divisions in the order they occur
M  Multiplications in the order they occur
A  Additions in the order they occur
S  Subtraction in the order they occur
Yes, you are correct in the order you did the calculation the first time
f(3) = 3(3^2) + 2
= 3(9) + 2
= 27+2
= 29
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