b) Find the value of 4x? - 7y - 2xy, if x = 3 and y=-2.
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= -14
Step-by-step explanation:
4x - 7y - 2xy
=4(3) - 7(-2) - 2(3)(-2)
=12 - 14 + 12
=12 - 26
= -14
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