2x2 3xy 4y2 when x 2 and y 4 i would like to know how they got 80 nif any

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Latest exam Aptitude Question SOLUTION: 2x2 + 3xy -4y2 when x=2 and y=4 i would like to know how they got (-80) if any one can break it down this is from a sample test for college online

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(#M40045754) EXAM Numerical Ability question Keep an EYE

2x2 + 3xy -4y2 when x=2 and y=4 i would like to know how they got (-80)
if any one can break it down this is from a sample test for college online

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