SOLUTION: If 6 is added to a number and then subtracted from the same number,the product of the sum and the difference is 189. what is the number?

SOLUTION: If 6 is added to a number and then subtracted from the same number,the product of the sum and the difference is 189. what is the number?

Algebra.Com

Question 306867: If 6 is added to a number and then subtracted from the same number,the product of the sum and the difference is 189. what is the number?
Answer by texttutoring(324) (Show Source): You can put this solution on YOUR website!
Let x=the number
(x+6)(x-6)=189
x^2 - 36 = 189
x^2=225
x=15
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