Question

Rearrange this formula to make x the subject.
y = 3x2 - 2

Answer 1

The subject 'x' in terms of 'y'

`x = \sqrt{(y+2)/(3) }`

Explanation:

Explanation:-

Given subject in terms of 'x'

y = 3 x² - 2

Adding '2' on both sides, we get

y + 2 = 3 x² - 2 +2

y+2 = 3 x²

Dividing '3' on both sides, we get

`x^(2) = (y+2)/(3)`

`x = \sqrt{(y+2)/(3) }`