Seudónimo Seudónimo

12-02-2017
Mathematics

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find the product of (x-4) (x+5)

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friedalafiesta friedalafiesta

12-02-2017

You have to use the distributive property:
(x*x)+(x*5)+(-4*x)+(-4*5)
x^2+5x-4x-20
x^2+x-20

Answer Link

ponyluvver1007 ponyluvver1007

12-02-2017

(x-4)(x+5)
x^2+5x-4x-20 (Step one: FOIL)
x^2+x-20 (Step two: Combine like terms)

Answer Link

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