Posted by **Hellga** on Wednesday, January 9, 2008 at 8:55pm.

Please solve this equation. As you write down the steps, please give me a description on what you did.

y^3 - 16y^3/2 + 64 = 0

- Trig. -
**Damon**, Wednesday, January 9, 2008 at 8:56pm
I tried to answer down below

I think no real y is a solution

- Trig. -
**Damon**, Wednesday, January 9, 2008 at 8:58pm
OH, that is a different problem !

let p = y^1.5

then

p^2 -16 p + 64 = 0

- Trig. -
**Hellga**, Wednesday, January 9, 2008 at 8:59pm
Explain!!!!!!

- Trig. -
**Damon**, Wednesday, January 9, 2008 at 9:01pm
(p-8)(p-8) = 0

p = 8

y^3/2 = 8

y^3 = 8*8

y = 2*2 = 4

- Trig. -
**Damon**, Wednesday, January 9, 2008 at 9:02pm
The one with the typo was hard.

- Trig. -
**Damon**, Wednesday, January 9, 2008 at 9:05pm
Explain:

I saw (once you fixed it) that the variable at the beginning, y^3 was the square of the one in the middle y^3/2

So I figured I could make it into a quadratic if I called the 3/2 one p and then the 3 one would be p^2

## Answer this Question

## Related Questions

- trigonometry - Please solve this equation. As you write down the steps, please ...
- trig 30 - Please help I need to solve the following question for x, where 0<x...
- algebra - solve each literal equation for the indicated variable linear equation...
- trig - sin(-π) + cos 5π how to solve without a calculator. Please ...
- college algebra - please solve by method of substitution 0.3x-0.4y-0.33=0 0.1x...
- conics - The graph of y=x^2 is reflected in the x-axis, then stretched ...
- math 012 - will someone please double check my answer to this problem. the ...
- algebra - The area of the wall you are going to paint is 50 feet2. If the width ...
- Math - Please help - (Write an equation in slope intercept form of the line that...
- Algebra - Totally confused-learned this today and I don't get it-Please help ...

More Related Questions