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X2+5X-546=0
We add all the numbers together, and all the variables
X^2+5X-546=0
a = 1; b = 5; c = -546;
Δ = b2-4ac
Δ = 52-4·1·(-546)
Δ = 2209
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{2209}=47$$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(5)-47}{2*1}=\frac{-52}{2} =-26 $$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+47}{2*1}=\frac{42}{2} =21 $
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