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0=25x^2+30x+13
We move all terms to the left:
0-(25x^2+30x+13)=0
We add all the numbers together, and all the variables
-(25x^2+30x+13)=0
We get rid of parentheses
-25x^2-30x-13=0
a = -25; b = -30; c = -13;
Δ = b2-4ac
Δ = -302-4·(-25)·(-13)
Δ = -400
Delta is less than zero, so there is no solution for the equation
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