Question

X=0, y= -2 find the value of the following expressions:
a. 3x² + 4xy + 4
b. 4x²y+ 3xy² + 2xy
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Answer 1

Answer:

1. on putting x=0 and y=-2 ,then,

3(0)(0) + 4(0)(-2) + 4

= 0+0+4

= 4

2. 4(0)(0)(-2) + 3(0)(-2)(-2) + 2(0)(-2)

= 0+0+0

= 0

Answer 2

Answer:

a. 3x²+4xy+4

= 3(0)²+4(0)(-2)+4

= 0+0+4

= 4

b. 4x²y+3xy²+2xy

= 4(0)²(-2)+3(0)(-2)²+2(0)(-2)

= 0+0+0

= 0