SOLUTION: 2y^(2/3)+17y^(1/3)+30=0
I don't understand how to do this problem!
Algebra.Com
Question 283306: 2y^(2/3)+17y^(1/3)+30=0
I don't understand how to do this problem!
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
2y^(2/3)+17y^(1/3)+30=0
let y^(1/3)=u
2u^2+17u+30=0
(u+6) (2 u+5) = 0
plug y^(1/3) back in for u
(y^(1/3)+6)*(2y^(1/3)+5)=0
(y^(1/3)+6)=0
y^(1/3)=-6
y=(-6)^3
(2y^(1/3)+5)=0
2y^(2/3)=-5
y^(2/3)=-5/2
y^2=(-5/2)^3
y^2 = -125/8
y=sqrt(-125/8)
y=-sqrt(-125/8)
RELATED QUESTIONS
my math teacher taught us how to do this but i don't understand (3,2), y = x + 5 (answered by josgarithmetic)
x= P(x) =
0 0.68
1 0.2
2 0.06
3 (answered by Boreal,math_tutor2020)
f(x)=3X+2 and g(x)=-2X+1 find g(f(-2))
I don't understand how to solve this... (answered by ikleyn)
How Do I Do This Problem????... (answered by ankor@dixie-net.com)
i DO NOT UNDERSTAND HOW TO DO THIS PROBLEM
X-2<1
-... (answered by elima)
how do you solve 2y^3+17y^2+37y+7 divided by... (answered by lynnlo)
1/3+(-5/6)+(-1/2)=
I do not understand how to work this problem.
(answered by jim_thompson5910)
Can you help me with this problem. I don't know how to solve it.... (answered by CubeyThePenguin)
My paper says only "Algebra Applications with Angles" lines angles and triangles. I... (answered by cleomenius)