koalarules6 koalarules6

21-03-2017
Mathematics

contestada

x2+5x−9 complete the square of this equation

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TheHero TheHero

26-03-2017

To complete the square consider the terms that contains the variable only ( in case of single variable equation)

x^2 + bx = (x+b/2) - b^2 <formula for completing the square.

(x+5/2)^2 - (5/2)^2 - 9 = (x+5/2)^2 -15.25

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