2xy (x-4) + 5y and find its value for x=2,y= -1 x=1/4, y = -1/2
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Answered by
0
Answer:
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Step-by-step explanation:
2×2×-1(2-4)+5×-1
3(-2)-5
-6-5
-11
Answered by
5
Step-by-step explanation:
x= 2 y= -1
2xy(x-4)+5y
=2×2×(-1)(2-4)+5×(-1)
= -4×(-2)+(-5)
=8-5
=3
x=1/4 y=-1/2
2xy(x-4)+5y
=2×1/4×(-1/2)(1/4-4)+5×(-1/2)
= -1/4×(-15/4)+(-5/2)
=15/16+(-5/2)
=(15-40)/16
= -25/16
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