SOLUTION: X-y=3 and x+y=8 then what does x^3-y^3 equal and how.
Algebra.Com
Question 979440: X-y=3 and x+y=8 then what does x^3-y^3 equal and how.
Answer by anand429(138) (Show Source): You can put this solution on YOUR website!
x-y=3 and
x+y=8
Adding both, 2x = 11
=> x=11/2
Putting back y= 5/2
so,
x^3-y^3 = (11/2)^3-(5/2)^3
=(11^3-5^3)/8
=(1331-125)/8
=603/4
RELATED QUESTIONS
If y - x = -3 and 4x + y = 2, then what does x... (answered by TakeATuition.com)
-y=(-x)-3 What does Y... (answered by psbhowmick)
For what values of x and y does... (answered by stanbon)
{{{x^4+y^4=2}}}
and
{{{x^8+y^8=3}}}
then:
{{{x^16+y^16=8&1/2}}}
how does it do... (answered by Edwin McCravy)
if -2x+7y=-8 and x-6y=10 then what does x-y... (answered by stanbon)
If, x+yi=3+2i, then what do x and y... (answered by Gogonati)
X+y=15
X=y+3
What is x and y equal... (answered by addingup,MathTherapy)
4y=(x+y+10)
what does x and y... (answered by t_as87)