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Mathematics 21 Online
OpenStudy (anonymous):

If x =3 and y = -2 , then y4 - 4x = ? A. -28 B. -20 C. -4 D. 4

OpenStudy (ash2326):

y*4-4*x? given y=-2 and x=3 put in the equation -2*4-4*3 -20 option B

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