Find a pair of integer whose product is -36 and whose difference is 15 – InterviewSolution

1.

Find a pair of integer whose product is -36 and whose difference is 15

Answer»

x=12,y=-3

Step-by-step EXPLANATION:

XY=-36

X-Y=15

by formula,

$(x - y) { }^{2} + 4xy = (x + y) { }^{2} \\$

just substitute VALUES and find the answer

after that USE the ELIMINATION method

X-Y=15

X+Y=9

THEREFORE,

X=12,Y=-3

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