Set the factor '(-4 + -1x2)' equal to zero and attempt to solve
: Simplifying
-4 + -1x2 = 0
Solving
-4 + -1x2 = 0
Move all terms containing x to the left, all other terms to the right.
Add '4' to each side of the equation
. -4 + 4 + -1x2 = 0 + 4
Combine like terms: -4 + 4 = 0
0 + -1x2 = 0 + 4 -1x2 = 0 + 4
Combine like terms:
0 + 4 = 4 -1x2 = 4
Divide each side by '-1'.
x2 = -4
Simplifying
x2 = -4
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