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25=49+x^2
We move all terms to the left:
25-(49+x^2)=0
We get rid of parentheses
-x^2-49+25=0
We add all the numbers together, and all the variables
-1x^2-24=0
a = -1; b = 0; c = -24;
Δ = b2-4ac
Δ = 02-4·(-1)·(-24)
Δ = -96
Delta is less than zero, so there is no solution for the equation
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