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5x^2-4=-49
We move all terms to the left:
5x^2-4-(-49)=0
We add all the numbers together, and all the variables
5x^2+45=0
a = 5; b = 0; c = +45;
Δ = b2-4ac
Δ = 02-4·5·45
Δ = -900
Delta is less than zero, so there is no solution for the equation
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