Answer:
b. The first step in the equation solving is subtracting 8 from both sides of the equation.
Step-by-step explanation:
Here, the given quadratic equation is : [tex]-5x^2 + 8 = 133[/tex]
Let us try and solve this given equation.
[tex]-5x^2 + 8 = 133 \\\implies -5x^2 + 8 - 8 = 133 -8\\\implies -5x^2 = 125\\\implies x^2 =\frac{125}{-5} = -25\\\implies x^2 = -25 = (5i)^2[/tex]
So, x = ± 5i
Hence, as we can see here, the first step in the equation solving is subtracting 8 from both sides of the equation.
