Question 692078
Factor out the commonalities: 3x
{{{3x(3x^2-x-10)}}}
What factors of 3 and -10 will combine to create -1...
factors of 3: 1, 3
facotrs of 10: 1, 2, 5, 10
3*2 = 6 and 1*5=5, if the 6 is negative, then -6+5 is -1.  Therefore,
{{{highlight_green(3x(3x+5)(x-2))}}}
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