Find value of x
8 * 2 (to the power x +2) = 32
Please give the entire steps..
2006-09-24 04:45:06 · 4 answers · asked by Anonymous in Education & Reference ➔ Homework Help
divide both sides by 8
2^x+2=4
Reduce 4 to terms of 2^
2^x+2=2^2
Get rid of the 2^
x+2=2
Subtract 2 from each side
x=0
2006-09-24 04:47:38 · answer #1 · answered by bunstihl 6 · 1⤊ 0⤋
To find value of x, let us simplify the equation thus:
8 * 2 (to the power x +2) = 32
2 (to the power x +2) = 32/8 = 4
2 (to the power x) multiplied by 2 (to the power of 2) = 4
i.e. 2 (to the power x) multiplied by 4 = 4
therefore 2 (to the power x) = 4/4 = 1
which implies that x = 0 because anything raised to the power of 0 is 1
2006-09-24 12:03:38 · answer #2 · answered by Booleo 1 · 0⤊ 0⤋
8*2^(x+2)=32
2^(x+2)=32/8=4=2^2
x+2=2
x=0
2006-09-24 11:48:09 · answer #3 · answered by raj 7 · 1⤊ 0⤋
next step: 2^(x+2)=4
(x+2)ln2=ln4
x+2=ln4/ln2
x=ln4/ln2-2
2006-09-24 11:49:33 · answer #4 · answered by cloudinsky 1 · 0⤊ 0⤋