Question

A formula for the area of a square is A=s^2, where s is a side. Suppose the area of a square is given to the right.
A. ( I have this one )
B. Find s(x)?
C. Find s(3)?

Answer 1

A=9x^2-12x+4

Answer 2

right?

Answer 3

yep

Answer 4

A=s^2=9x^2-12x+4=(3x)^2 -2*3x*2+(2)^2=(3x-2)^2

Answer 5

So,
s^2=(3x-2)^2
s=3x-2
s(x)=3x-2

Answer 6

Got it?

Answer 7

yep what about s(3)

Answer 8

would it be 7?

Answer 9

Yep

Answer 10

ok i have another one but it's hard to describe on here.. what do u suggest i do?

Answer 11

from which topic?

Answer 12

it's math but it's a word problem

Answer 13

Just copy and paste it

Answer 14

i cant copy it.. it's on a program called math xl and it want let me copy and paste

Answer 15

do u want me to type it right here and see what u think... the problem has 3 parts to it

Answer 16

Ok

Answer 17

u post in another question

Answer 18

and tag me

Answer 19

ok give me just a sec and it will be up