r-4=(2r+7)^1/2

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Solution for r-4=(2r+7)^1/2 equation: 



r-4=(2r+7)^1/2

We move all terms to the left:

r-4-((2r+7)^1/2)=0

We multiply all the terms by the denominator


r*2)-((2r+7)^1-4*2)=0

We add all the numbers together, and all the variables

r*2)-((2r+7)^1=0

Wy multiply elements

2r^2=0

a = 2; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·2·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$r=\frac{-b}{2a}=\frac{0}{4}=0$

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