0

when x - 4, y = -4 and m = -1/4, evaluate (x^{2}y - y^{2}m) (mx - mxy)

A. 300

B. 180

C. -180

D. -300

**Comments**

0

x = 4

y = -4

m = -1/4

(x^{2}y - y^{2}m)(mx - xmy) = ((4^{2 }x (-4)) - ((-4)^{2} x (-1/4))) ((-1/4 x 4) - (-1/4 x 4 x (-4)))

= (-64 - (16 x (-1/4))) (-1 - (-1 x (-4))

= (-64 - (-4)) (-1 - 4)

=(-64 + 4)(-5)

= (-60)(-5)

= 300

**Ans A**

Your Answer