SOLUTION: five less than the square of a positive number is 3 more than 2 times the number. find the number.

SOLUTION: five less than the square of a positive number is 3 more than 2 times the number. find the number.

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Question 862714: five less than the square of a positive number is 3 more than 2 times the number. find the number.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
let the number be x
x^2-5 = 2x+3
x^2-2x-8=0
x^2-4x+2x-8=0
x(x-4)+2(x-4)=0
(x-4)(x+2)=0
x=4 OR x= -2
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