if x=6,y=-2 and z=3,evaluate
x+y
X²
xy+z
x+2y
Answers
Answered by
0
Answer:
8
36
15
10
Step-by-step explanation:
we put the value 6+2
6×6
6×2+3
6+2×2
Answered by
0
1. x+y = 4
2. x² = 36
3. xy+z = -9
4. x+2y = 2
Explanation:
Given:
1. x=6
2. y =-2
3. z=3
To find:
1. x+y
2. x²
3. xy+z
4. x+2y
1. x+y
==> x =6
==> y =-2
==> Substitute these values in x+y
==> x+y = 6-2
==> x+y = 4
2. x²
==> x =6
==> Substitute these values in x²
==> x² = 6²
==> x² = 36
3. xy+z
==> x =6
==> y =-2
==> z = 3
==> Substitute these values in xy+z
==> xy+z = 6(-2)+3
==> xy+z = -12+3
==> xy+z = -9
4. x+2y
==> x =6
==> y =-2
==> Substitute these values in x+2y
==> x+2y = 6+2(-2)
==> x+2y = 6-4
==> x+2y = 2
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