Is there an equals sign? Or doesn't it matter?
Factor this trinomial.
2x^2-x-3
2 answers
2x^2-x-3 Factor this trinomial.
I recommend use of the AC or "Amazing" method.
a=2, b=-1, c=-3
a*c=-6 We need to find factors of a*c that sum to b
factors sum
-6 1 -5
-3 2 -1 this is it
take those factors and use as denominators with a as numerator. Reduce to simplest terms. leave negative signs where they started. You now have coefficients.
2/-3 -> 2x-3
2/2=1/1 --> x+1
2x^2-x-3=(2x-3)(x+1)
I recommend use of the AC or "Amazing" method.
a=2, b=-1, c=-3
a*c=-6 We need to find factors of a*c that sum to b
factors sum
-6 1 -5
-3 2 -1 this is it
take those factors and use as denominators with a as numerator. Reduce to simplest terms. leave negative signs where they started. You now have coefficients.
2/-3 -> 2x-3
2/2=1/1 --> x+1
2x^2-x-3=(2x-3)(x+1)