x2+8x+12 = 0
When factorized:
(x+6)(x+2) = 0
Therefore: x = -6 or x = -2
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x^2 - 6x + 6 = 0 Quadratic formula give (6 +/- sqrt(36 - 24))/2 ie 3 +/- (sqrt 12)/2 = 3 +/- 3.464/2 = 3 +/- 1.732 = 4.732 or 1.268
I'll do ya one better - 12 plus 8 equals what?
x=5.54x+1= 2x+12-1 -14x=2x+11-2x -2x2x=11/2 /2x=5.5
Solving these simultaneous equations by the elimination method:- x = 1/8 and y = 23/12
-5x + 13 = -12 -5x = -12 - 13 = -25 x = -25/-5 = 5