How do you solve by completing the square for #x^2 -2x -24 = 0#?

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Answer 1 · 2015-03-30T04:11:22

Start of by factoring;

#x^2 - 2x - 24#

Product =-24

Sum =- 2

Factors = -6 , 4

# => x^2 - 6x + 4x + 24#

# = x(x-6)-4(x-6)#

#therefore x^2 -2x -24 = (x-6)(x-4)#

So # (x-6)(x-4)=0#

So # x= 6, 4#