3x 2 +48x+192=0 What does x equal
First divide through by 3 to get
x^2 + 16x + 64 = 0
The left-hand side is simply (x+8)^2 so there is a double root at x = -8
Check by drawing a graph of the original quadratic and seeing where it hits the x-axis.
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(3x2)+48x +192 = 0
6+48x +192 = 0
48x+198= 0
48x =-198, So x = -198/48
-4.125
