D] Simply and find the value of the expression for a= -1 and b = 2
2a2 + 2ab - a2 + b2
Answers
Answered by
2
Step-by-step explanation:
a=-1 b = 2
2×(-1)×2+2×(-1)×2-(-1)×2+2×2
-2×2+(-2)×2+1×2+2×2
-2×2-2×2+1×2+2×2
-4-4+2+4
-8+2+4
-6+4
-2
ans = -2
Answered by
1
Answer:
-2
Step-by-step explanation:
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