Please I need help with this. Given that x=6,y=-4 and z=14, Evaluate 2x²y/5z².?

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Answer 1 · 2018-06-24T15:32:24

#-72/249#

Plugging

#x=6,y=-4,z=14# into your term we get

#2/5*(36*(-4))/14^2#

this is

#2/5*(-144/196)#

and
#144/4=36#

#196/4=49#

so we get

#2/5*(-36/49)=-72/249#

Answer 2 · 2018-06-24T15:32:29

#color(cyan )(=> -(72/245)#

#x = 6, y = -4, z = 14#

To evaluate #(2x^2y) / (5z^2)#

#=> (2 * 6^2 * (-4)) / (5 * 14^2)#

#=> (2*36*-4) / (5*196)#

#=> (-288) / 980 = -(72/245)#