5x^2-10+21=0

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Solution for 5x^2-10+21=0 equation: 



5x^2-10+21=0

We add all the numbers together, and all the variables

5x^2+11=0

a = 5; b = 0; c = +11;
Δ = b2-4ac
Δ = 02-4·5·11
Δ = -220
Delta is less than zero, so there is no solution for the equation

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