Beautiful08 Beautiful08

18-03-2016
Mathematics

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(x2 - 5x + 2) + (x2 + 4x + 5) - (x2 - 6x - 42)

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SmarticalParticals SmarticalParticals

18-03-2016

Distribute the negative through the 3rd brackets

(x^2 -5x +2) + (x^2 + 4x +5) -x^2 + 6x + 42 =
x^2 -5x +2 + x^2 +4x + 5 - x^2 + 6x + 42 =

Combine like terms

x^2 + 5x + 49

Won't factor, so... done.

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