2a²b + 3ab² +2, when a= 1, b=2
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2*1*2+3*1*4+2
=4+2+12=18 ans
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Step-by-step explanation:
2a²b + 3ab² + 2, when a= 1, b= 2
2× 1× 1× 2 + 3× 1× 2× 2 + 2
2+8
10
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