Asked by elvis

A Boy Is 6 years Younger Than His Sister.The Product Of Their Ages Is 135.Find The Ages
Answered by Reiny
sister's age --- x
the boy's age -- x-6

x(x-6) = 135
x^2 - 6x - 135 = 0
solve for x, Hint: it factors nicely
Answered by tanya
x=9years and x=15yers
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