3x^2 = ? if x stands for 3?

4 ⤊

OKay... my question is do you square the x and then multiply the coefficient?

2007-10-08 13:25:24 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

Yes. this is 3*(3)^2 = 3*9= 27

2007-10-08 13:29:26 · answer #1 · answered by ironduke8159 7 · 2⤊ 1⤋

= 3x^2
= 3(3^2)
= 3 * 9
= 27

Answer: 27

2007-10-08 20:43:36 · answer #2 · answered by Jun Agruda 7 · 2⤊ 0⤋

the x is under the exponent, the 3 is not

if x = 2
3x^2 = 3(2)^2 = 3(4) =12

but if (3x)^2 x = 2
is 6^2 = 36 it's the brackets

2007-10-08 20:29:22 · answer #3 · answered by (+_+) B 4 · 0⤊ 2⤋

3x^2=3(3^2)=3(9)=27
short and simple

2007-10-08 20:30:08 · answer #4 · answered by michael s 2 · 0⤊ 0⤋

no just plugg in and u 9 *3 =27

2007-10-08 20:28:53 · answer #5 · answered by programhelp 2 · 0⤊ 1⤋