Give answer of above question.
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Give answer of above question.
* Please answer step by step.
* Please don't post irrevelant answers , it's a humble request .
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Answer:
-1
Step-by-step explanation:
Putting value of a = 1 and b = -2
So
a²+b²+3ab
(1)²+(-2)²+3×1×(-2)
1+4-6
-1