23.0k views
5 votes
I need to round to tge narest tenth

1 Answer

0 votes

Answer:


\lbrace8.4,0.6\rbrace

Step by step explanation:

Solve for x:


x^2-11x+5=-2x

As a first step, solve using inverse operations to solve equations:


\begin{gathered} x^2-11+2x+5=0 \\ x^2-9x+5=0 \end{gathered}

Now, to solve this quadratic function we need to use the quadratic formula:


\begin{gathered} x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ \text{where,} \\ ax^2+bx+c=0\text{ is the form of the function} \end{gathered}

Then, the solutions for the equation:


\begin{gathered} x_1=\frac{9+\sqrt[]{(-9)^2-4(1)(5)}}{2(1)}=8.4 \\ x_2=\frac{9-\sqrt[]{(-9)^2-4(1)(5)}}{2(1)}=0.6 \end{gathered}

User Moskis
by
3.9k points