mk2k
mk2k
03-04-2016
Mathematics
contestada
x(x^2-6x+5)=12(x-5)
Please! Step by step.
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annika64
annika64
03-04-2016
X(x^2-6x+5)=12(x-5)
Distribute
x^3-6x^2+5x=12x-60
Simplify (minus 12x from both sides)
x^3-6x^2-7x=60
Factor X
x(x^2-6x-7)=60
Divide X from btoh sides
(x^2-6x-7)=60/x
Simplify
X=7.861308
Answer Link
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