SOLUTION: the sum of the square of a positive number and the square of 3 more than the number is 185. What is the positive number?
Algebra.Com
Question 347843: the sum of the square of a positive number and the square of 3 more than the number is 185. What is the positive number?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
let number be x
x^2+(x+3)^2=185
x^2+x^2+6x+9=185
2x^2+6x-176=0
2x^2+6x-176=0
x^2+3x-88=0
x^2+11x-8x-88=0
x(x+11)-8(x+11)=0
(x-8)(x+11)=0
x=8 Or -11
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