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x+5 is a factor of x2+4x-5 use synthetic division to learn that the other factor is x-1
3x4 plus 5x3 plus x2 - 5 divided by x 2 =[(3x4) + (5x3) + (x2 - 5)]/x2 =(12 + 15 + x2 -5)/x2 =(27 - 5 + x2)/x2 =(22 + x2)/x2
x + 4
i got 42 divided 7x
x2 + 5x - 120 can not be factored.