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(4.89x-2.44)(4.898x+2.44)=0
We multiply parentheses ..
(+16x^2+9.76x-9.76x-5.9536)=0
We get rid of parentheses
16x^2+9.76x-9.76x-5.9536=0
We add all the numbers together, and all the variables
16x^2-5.9536=0
a = 16; b = 0; c = -5.9536;
Δ = b2-4ac
Δ = 02-4·16·(-5.9536)
Δ = 381.0304
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{381.0304}}{2*16}=\frac{0-\sqrt{381.0304}}{32} =-\frac{\sqrt{}}{32} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{381.0304}}{2*16}=\frac{0+\sqrt{381.0304}}{32} =\frac{\sqrt{}}{32} $
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