(1,-2)(4,-2)=

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Solution for (1,-2)(4,-2)= equation:


(1,-2)(4,-2)=0

We simplify the equation to the form, which is simple to understand 
(1,-2)*(4,-2)=0

Reorder the terms in parentheses
multiplication of parentheses
(+4)=0



Remove unnecessary parentheses
+4=0

We move all terms containing  to the left and all other terms to the right. 
0=0-4

We simplify left and right side of the equation. 
0=-4

0=-4

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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