The question is a little unclear. If you mean: (A - B) x A2, then the answer is: A3 - (B x A2) (or, more simply, A3-BA2) If you mean: ((A - B) x A)2, then the answer is: (A2 - AB)2 which becomes A4 - 2A3B + A2B2
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A^2-2ab+B^2 is actually (A+B)^2 AB squared is A^2B^2 or (AB)^2
(a x b)^b =ab x b^2 =ab^3
Factor by grouping. x2y - xyb - abx + ab2 The first two can factor out an xy, so xy(x - b) The second two can factor out a -ab, so -ab(x - b) and we have xy(x - b) - ab(x - b) Since what is inside the parentheses is alike, we can be assured that we have factored correctly and now continue to group: ANS: (x - b)(xy - ab)
a+b(a+B)=ab
You want: abc + ab Factor out the common terms which are "a" and "b" ab ( c + 1 )