ab * -b = -ab^-2
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x = ab x = 21*37 x = 777
x2y + axy + abx + a2b Factor by grouping. xy(x + a) + ab(x + a) (xy + ab)(x + a)
Well, honey, to simplify x times 3, you just multiply them together. So, the answer is 3x. It's as simple as that, darling.
sec(x)*cot(x) = (1/cos(x))*(cos(x)/sin(x)) = (1/sin(x)) = csc(x)
2x3x-4= -24