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3/2y-y-8=24
We move all terms to the left:
3/2y-y-8-(24)=0
Domain of the equation: 2y!=0We add all the numbers together, and all the variables
y!=0/2
y!=0
y∈R
-1y+3/2y-32=0
We multiply all the terms by the denominator
-1y*2y-32*2y+3=0
Wy multiply elements
-2y^2-64y+3=0
a = -2; b = -64; c = +3;
Δ = b2-4ac
Δ = -642-4·(-2)·3
Δ = 4120
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{4120}=\sqrt{4*1030}=\sqrt{4}*\sqrt{1030}=2\sqrt{1030}$$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-64)-2\sqrt{1030}}{2*-2}=\frac{64-2\sqrt{1030}}{-4} $$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-64)+2\sqrt{1030}}{2*-2}=\frac{64+2\sqrt{1030}}{-4} $
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