Maddy B.
asked 07/29/21
identify the pair of integers the product is 14 and the sum is 9
Raymond B.
answered 07/29/21
Math, microeconomics or criminal justice
7 and 2
7 x 2 = 14
7+2 = 9
xy =14
x+y= 9
y=9-x
x(9-x) = 14
9x -x^2 = 14
x^2 -9x +14 = 0
factor
(x-7)(x-2) = 0
set each factor =0 and solve for x
x-7= 0
x =7
x-2 =0
x =2
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