Taneesha B.

asked • 09/05/14

(2x+1)*(3x-4)*(x+5)

difficult to answer

1 Expert Answer

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Phillip R. answered • 09/05/14

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Start by multiplying the first two binomials using the FOIL method. Then multiply your answer by the third binomial.
 
(2x + 1)(3x - 4) = 6x2 -8x +3x - 4 = 6x2 -5x -4
 
(6x2 -5x - 4)(x + 5) = 6x3 + 30x2 -5x2 -25x -4x -20 = 6x3 +25x2 -29x - 20
 
 
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