Question

What is the first step in solving the quadratic equation -5x^2+8=133?

Answer 1

its b

Explanation:

Answer 2

a) subtracting '8' on both sides, we get

- 5 x² + 8-8 = 133-8

- 5 x² = 125

b) The solution is x = 5 i

Explanation:

Explanation:-

Step (i):-

Given quadratic equation - 5 x² + 8 = 133

subtracting '8' on both sides, we get

- 5 x² + 8-8 = 133-8

- 5 x² = 125

Step(ii):-

dividing '-5' on both sides, we get

`(-5 x^2)/(-5) = (125)/(-5)`

x² = -25

`x = √(-25)`

x = 5 i