Quad Equation
Find two roots that satisfy the shown equation:
Expand Hint
Quadratic Equation Formula:
$$$x_1,x_2=\frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2a}$$$
Hint 2
Quadratic Equation Form:
$$$ax^2+bx+c=0$$$
Quadratic Equation Formula:
$$$x_1,x_2=\frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2a}$$$
Quadratic Equation Form:
$$$ax^2+bx+c=0$$$
The problem’s equation can be rewritten as:
$$$5x^2+0x+-45=0$$$
Thus,
$$$x_1,x_2=\frac{-0\pm \sqrt{0^{2}-4\cdot (5)\cdot (-45)}}{2(5)}$$$
$$$x_1,x_2=\frac{\pm \sqrt{900}}{10}=\pm\frac{30}{10}=\pm3$$$
Therefore,
$$$x_1=3$$$
$$$x_2=-3$$$
3 & -3
Time Analysis
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