give, a= -1 b= -2 the value of 2(a²+ab)+3-ab
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refer the attached file
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Given, a= -1 and b= -2
=2(a^2-ab) + 3-ab
=2((-1))^2-( -1)( -2)) + 3-(-1)(-2)
=2(1+1)+3-2
=2×2+1
=4+1
=5
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