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(-2)(-4)(5)=0
We simplify the equation to the form, which is simple to understand
(-2)*(-4)*(5)=0
Reorder the terms in parentheses
multiplication of parentheses
(+8)*(5)=0
Reorder the terms in parentheses
multiplication of parentheses
(+40)=0
Remove unnecessary parentheses
+40=0
We move all terms containing to the left and all other terms to the right.
0=0-40
We simplify left and right side of the equation.
0=-40
0=-40
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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