10 X square + 3 x minus 4 splitting the middle term
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Step-by-step explanation:
10x^2+3x-4=0
10x^2+8x-5x-4=0
2x(5x+4)-1(5x+4)=0
(5x+4)(2x-1)=0
(5x+4)=0. or (2x-1)=0
x= -4/5 or 1/2.
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