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4x^2-24x+32=25
We move all terms to the left:
4x^2-24x+32-(25)=0
We add all the numbers together, and all the variables
4x^2-24x+7=0
a = 4; b = -24; c = +7;
Δ = b2-4ac
Δ = -242-4·4·7
Δ = 464
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{464}=\sqrt{16*29}=\sqrt{16}*\sqrt{29}=4\sqrt{29}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-24)-4\sqrt{29}}{2*4}=\frac{24-4\sqrt{29}}{8} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-24)+4\sqrt{29}}{2*4}=\frac{24+4\sqrt{29}}{8} $
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