SOLUTION: how do i factor: b sqared-19b-120

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Question 402423: how do i factor:
b sqared-19b-120


Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

b%5E2+-19b+-120............reorder the terms
+-120+-19b+%2B+b%5E2...........factor a trinomial
+-120+-19b+%2B+b%5E2.........write -19b as -24b%2B5b
+-120+-24b+%2B5b+%2B+b%5E2....group
+%28-120+-24b%29+%2B%285b+%2B+b%5E2%29
+24%28-5+-+b%29+%2Bb%285+%2B+b%29
+-24%285+%2B+b%29+%2Bb%285+%2B+b%29
+%285+%2B+b%29%28-24+%2B+b%29