You need two numbers whose sum is -1 and whose product is -30.
The numbers are -6 and 5
So
x2 -x - 30 = x2 - 6x + 5x - 30 = x(x - 6) + 5(x - 6) = (x - 6)(x + 5)
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Factor out the GCF and get X(X2-X+1).
It means to divide by x. For example, if I were to reduce 4 by a factor of x, I would get 4/x.If I reduced x by a factor of x, I would get x/x, which is equal to 1.
Asuming you ment The Factor of x^2+9x+18 the answer is (x+3)(x+6) Asuming you ment The Factor of x^2+9x+18 the answer is (x+3)(x+6)
9 - x2 will factor into (3 - x)(3 + x)
X squared plus 1 and x minus 1 ---- Actually it is the following: x3-x x(x2-1) x(x+1)(x-1)