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posted by Anonymous Sunday, January 20, 2013 at 11:12pm.

Simplify: (4x + 5)(4x2 + x - 4)

use the distributive property = 16x^2 + 4x^2 - 16x + 20x^2 + 5x - 20 collect all like terms and simplify

16x+8x+4x^2-16x+20+10+5x-20therefore 4x^2+8x+5x+10 4x^2+13x+10

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