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How solve it by using FOIL (4x^2-3x+2)(2x+5)

2 Answers

1 vote
8x^3 + 14x^2 - 11x +10
User Ville Myrskyneva
by
7.7k points
1 vote
(4x^2-3x+2)(2x+5)
(4x^2)(2x+5) + (-3x)(2x+5) + (2)(2x+5)

(4x^2)(2x+5) = 8x^3 + 45x^2
(-3x)(2x+5) = -6x^2 - 15x
(2)(2x+5) = 4x + 10

8x^3 + 45x^2 -6x^2 - 15x + 4x + 10
39x^2 + 8x^3 - 9x + 10 <-------------------------Answer

User Eric Pi
by
8.6k points