Question

9. Evaluate a2 + (-ab2) - a²b2 if a = -2 and b = 3. ​

Answer 1

Answer:

a=-2

b=3

$a^2+(-ab^2)-a^2b^2\\=(-2)^2+(+2 * 9)- (-2)^2(3)^2\\=4+18-(4 *9)\\=4+18-36\\=-14$

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