If a= -3 and b=2 , then the value of a² -2ab is
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21
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Answer : If a= -3 b=2 then a² -2ab = ?
a² -2ab =21
Step-by-step explanation: =(a*a)-(2*a*b)
=(-3*-3)-(2*-3*2)
=9-(-12)
=21
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