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5x^2+30x+225=175
We move all terms to the left:
5x^2+30x+225-(175)=0
We add all the numbers together, and all the variables
5x^2+30x+50=0
a = 5; b = 30; c = +50;
Δ = b2-4ac
Δ = 302-4·5·50
Δ = -100
Delta is less than zero, so there is no solution for the equation
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