4x2+-7x+1=0

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Solution for 4x2+-7x+1=0 equation:



4x^2+-7x+1=0
We add all the numbers together, and all the variables
4x^2-7x=0
a = 4; b = -7; c = 0;
Δ = b2-4ac
Δ = -72-4·4·0
Δ = 49
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{49}=7$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-7)-7}{2*4}=\frac{0}{8} =0 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+7}{2*4}=\frac{14}{8} =1+3/4 $

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