Question

3x 2 - 6 = 10 - x 2

{±1}
{±2}
{±4}

Answer 1

b {+2}

1111111111111111111111

Answer 2

x = ± 2

Explanation:

Given

3x² - 6 = 10 - x² ( add x² to both sides )

4x² - 6 = 10 ( add 6 to both sides )

4x² = 16 ( divide both sides by 4 )

x² = 4 ( take the square root of both sides )

x = ±
`√(4)` = ± 2