Asked by lovely

the product of two numbers is 161. twice the smaller is 9 less than the larger

Answers

Answered by Steve
the numbers are x and 2x+9, so

x(2x+9) = 161

Now just solve for x.

Or, note that 161 = 7*23, which fit the conditions above. You'd have had to figure that out to factor the quadratic anyway.
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