factorise 3x3 -x2 -10x
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3x³-x²+10x=0
x(3x²-x+10)=0
3x²-x+10=0
3x²-(6-5)x+10=0
3x²-6x+5x+10=0
3x(x-3)+5(x+2)=0
(x+2)(x-3) (3x+5)
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