F(x)=1.7x^2+x-2

Solution for F(x)=1.7x^2+x-2 equation:

(F)=1.7F^2+F-2

We move all terms to the left:

(F)-(1.7F^2+F-2)=0

We get rid of parentheses

-1.7F^2+F-F+2=0

We add all the numbers together, and all the variables

-1.7F^2+2=0

a = -1.7; b = 0; c = +2;
Δ = b2-4ac
Δ = 02-4·(-1.7)·2
Δ = 13.6
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$F_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$F_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$F_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{13.6}}{2*-1.7}=\frac{0-\sqrt{13.6}}{-3.4}
=-\frac{\sqrt{}}{-3.4}
$
$F_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{13.6}}{2*-1.7}=\frac{0+\sqrt{13.6}}{-3.4}
=\frac{\sqrt{}}{-3.4}
$