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X2=625.X=
We move all terms to the left:
X2-(625.X)=0
We add all the numbers together, and all the variables
X2-(+625.X)=0
We add all the numbers together, and all the variables
X^2-(+625.X)=0
We get rid of parentheses
X^2-625.X=0
We add all the numbers together, and all the variables
X^2-625X=0
a = 1; b = -625; c = 0;
Δ = b2-4ac
Δ = -6252-4·1·0
Δ = 390625
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{390625}=625$$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-625)-625}{2*1}=\frac{0}{2} =0 $$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-625)+625}{2*1}=\frac{1250}{2} =625 $
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