Question

What are the solutions of 12 – x2 = 0?

O x=273 and x = -213
O x= 3,
and x = -3/2
x = 4/5 and x = -4/3
x = 6 and x = -6

Answer 1

x = ± 2
`√(3)`

Explanation:

Given

12 - x² = 0 ( add x² to both sides )

12 = x² or

x² = 12 ( take the square root of both sides )

x = ±
`√(12)`

= ±
`√(4(3))` = ± 2
`√(3)`