Snoweastern955viz
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Factor the polynomial: 2b^2 + 9b – 11

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Mlcparra16viz
We perform the quadratic formula:
b = -9 ± √(9²+88) = -9 ± √(81+88) = -9 ± √169 = -9 ± 13 = -11/2 or 1
              4                      4                  4              4
So we have (b+11/2)(b-1)
We multiply this by 2 since we have a equal to 2,
2b²+9b-11 = (2b+11)(b-1)