SOLUTION: Hi there! I would love some help on this question, I really appreciate it. 7.9*10^-9=(x)*(.030*2x)^2 So far, I reduced it to 7.9*10^-9=(x)*(.0009+4x^2)******************** No +

Algebra ->  Expressions-with-variables -> SOLUTION: Hi there! I would love some help on this question, I really appreciate it. 7.9*10^-9=(x)*(.030*2x)^2 So far, I reduced it to 7.9*10^-9=(x)*(.0009+4x^2)******************** No +       Log On


   

Question 975999: Hi there! I would love some help on this question, I really appreciate it.
7.9*10^-9=(x)*(.030*2x)^2
So far, I reduced it to 7.9*10^-9=(x)*(.0009+4x^2)******************** No + sign
7.9e-9 = 0.0009*4x^2
7.9e-9 = 0.0036x^2
x^2 = 7.9e-9/3.6e-3 = 7.9e-6/3.6
x+=+sqrt%287.9%2F3.6%29%2A10%5E-3
and then got 7.9*10^-9=.0009x+4x^3.
Again, I really appreciate any help. This is actually for a chemistry class I'm taking as a senior in college, but I am just lost when it comes to applying algebra to this. Thank you!!
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there! I would love some help on this question, I really appreciate it.
7.9*10^-9=(x)*(.030*2x)^2
So far, I reduced it to 7.9*10^-9=(x)*(.0009+4x^2)******************** No + sign
7.9e-9 = 0.0009*4x^2
7.9e-9 = 0.0036x^2
x^2 = 7.9e-9/3.6e-3 = 7.9e-6/3.6
x+=+sqrt%287.9%2F3.6%29%2A10%5E-3
x =~ 1.4813657e-3
= 0.0014813657
=============================================
and then got 7.9*10^-9=.0009x+4x^3.