Question 725215
6x^2+31x+5
Since 5*6 = 30*1 and 30+1 = 31, you can use reverse-FOIL:
6x^2 + 30x + x+ 5
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6x(x+5) + (x+5)
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= (x=5)(6x+10
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X^2-8xy+12y^2
Since -2*-6 = 12 and -2+-6 = -8, you can use reverse-FOIL
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x^2 -6xy-2xy + 12y^2
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x(x-6y)-2y(x-6y)
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= (x-6y)(x-2y)
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Cheers,
Stan H.