7(-m2-2)-8m=28-8m

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Solution for 7(-m2-2)-8m=28-8m equation: 



7(-m2-2)-8m=28-8m

We move all terms to the left:

7(-m2-2)-8m-(28-8m)=0

We add all the numbers together, and all the variables

7(-1m^2-2)-8m-(-8m+28)=0

We multiply parentheses

-7m^2-8m-(-8m+28)-14=0

We get rid of parentheses

-7m^2-8m+8m-28-14=0

We add all the numbers together, and all the variables

-7m^2-42=0

a = -7; b = 0; c = -42;
Δ = b2-4ac
Δ = 02-4·(-7)·(-42)
Δ = -1176
Delta is less than zero, so there is no solution for the equation

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