-x2 - 11x + 26
= -(x2 + 11x - 26)
= -(x2 - 2x + 13x - 26)
= -[ x(x - 2) + 13(x - 2) ]
= -(x + 13)(x - 2)
= (x + 13)(2 - x)
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Do you mean x2+11x-26 if so then it is (x-2)(x+13) when factored
Divide all terms by -1 so: x2-11x-26 = (x+2)(x-13) when factored
-x2 + 11x + 26 = -(x - 13)(x + 2) = (13 - x)(x + 2) = (x - 13)(-x - 2)
-1(x-13)(x+2). APEX Answer
572 Because 2x11=22 and 13x2=26 and 22x26=572.