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 Â = 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.
