Question

if a=-2 and b=-1,find the value of the following expression 2a^2b-2ab^2+4​

Answer 1

answer is 0

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Answer 2

a=-2 and b=-1

$\bf{Given\: equation}$

$2 {a}^{2} b - 2a {b}^{2} + 4$

Putting value of a & b

$2 { ( - 2)}^{2} ( - 1) - 2 \times ( - 2) \times ( { - 1}^{2} ) + 4 \\ = 2 \times 4 \times ( - 1) + 4 \times 1 + 4 \\ = - 8 + 8 \\ = 0$

$<marquee>Hope it helps ❤️$