in-the-following-equation-solve-for-x-9x4-14x2-8-0

Question

In the following equation, solve for x.
9x⁴ +14x² -8 = 0

Accepted Answer

Solution set: {-2/3, 2/3}

Answer

Solution set: {-√2, -2/3, 2/3, √2}

Answer

Solution set: {-√2, √2}

Answer

No solution