Question

Solve each equation. 8x2 - 24 = 3x2 - 9

Answer 1

Answer:  The answer is $x=\pm\sqrt{3}.$.

Step-by-step explanation: The given equation is

$8x^2-24=3x^2-9.$

We are given to solve the above quadratic equation. Since there is no term containing 'x', so we will be using the square root method to solve the equation.

The solution is as follows:

$8x^2-24=3x^2-9\\\\\Rightarrow 8x^2-3x^2=-9+24\\\\\Rightarrow 5x^2=15\\\\\Rightarrow x^2=3\\\\\Rightarrow x=\pm\sqrt{3}.$

Thus, the required solution is  $x=\pm\sqrt{3}.$

Answer 2

Ok I'm not sure on how I would do the last bit of the equation but here's what I've got;   


Answer 1=                    -8 = -3

Answer2=                    -8 - 3= -11

Not 100% sure on this. so, I'm sorry if its wrong