Answer:
[tex]-1.30\ and\ -7.70[/tex] (2 decimal places)
Step-by-step explanation:
Quadratic Formula: [tex]x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
-----------------------------------------------
[tex]x^2+9x+10=0[/tex]
Plug in values:
[tex]x=\frac{-9\pm \sqrt{9^2-4\cdot \:1\cdot \:10}}{2\cdot \:1}[/tex]
First value of x:
[tex]x=\frac{-9+\sqrt{41}}{2}=-1.30[/tex] (2 decimal places)
Second value of x:
[tex]x=\frac{-9-\sqrt{41}}{2}=-7.70[/tex] (2 decimal places)
