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(2)(x-15)=(5/2x)(2)
We move all terms to the left:
(2)(x-15)-((5/2x)(2))=0
Domain of the equation: 2x)2)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
2(x-15)-((+5/2x)2)=0
We multiply parentheses
2x-((+5/2x)2)-30=0
We multiply all the terms by the denominator
2x*2x)2)-((-30*2x)2)+5=0
Wy multiply elements
4x^2-60x=0
a = 4; b = -60; c = 0;
Δ = b2-4ac
Δ = -602-4·4·0
Δ = 3600
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{3600}=60$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-60)-60}{2*4}=\frac{0}{8} =0 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-60)+60}{2*4}=\frac{120}{8} =15 $
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