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2.25x+1/2x=44
We move all terms to the left:
2.25x+1/2x-(44)=0
Domain of the equation: 2x!=0We multiply all the terms by the denominator
x!=0/2
x!=0
x∈R
(2.25x)*2x-44*2x+1=0
We add all the numbers together, and all the variables
(+2.25x)*2x-44*2x+1=0
We multiply parentheses
4x^2-44*2x+1=0
Wy multiply elements
4x^2-88x+1=0
a = 4; b = -88; c = +1;
Δ = b2-4ac
Δ = -882-4·4·1
Δ = 7728
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{7728}=\sqrt{16*483}=\sqrt{16}*\sqrt{483}=4\sqrt{483}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-88)-4\sqrt{483}}{2*4}=\frac{88-4\sqrt{483}}{8} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-88)+4\sqrt{483}}{2*4}=\frac{88+4\sqrt{483}}{8} $
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