Use the quadratic formula to solve for x.5x²-7x=2Round your answer to the nearest hundredth.If there is more than one solution, separate them with commas.X =0.0...Х

Use the quadratic formula to solve for x5x7x2Round your answer to the nearest hundredthIf there is more than one solution separate them with commasX 00Х class=

Respuesta :

We need to solve the following equation:

[tex]5x^2-7x=2[/tex]

The first step is to move all the terms to the left side:

[tex]5x^2-7x-2=0[/tex]

Then we have to calculate the roots of the equation:

[tex]\begin{gathered} x_{1,2}=\frac{-(-7)\pm\sqrt[]{(-7)^2-4\cdot5\cdot(-2)}_{}}{2\cdot5}=\frac{7\pm\sqrt[]{89}}{10} \\ x_{1,2}=\frac{7\pm9.44}{10} \\ x_1=\frac{7+9.44}{10}=1.644 \\ x_2=\frac{7-9.44}{10}=-0.244 \end{gathered}[/tex]

The roots are -0.244 and 1.644.