What are the solutions of the equation 9x4 – 2x2 – 7 = 0? use u substitution to solve.
Asked by maham237 @ in Mathematics viewed by 449 People
What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve.x = + √7/9 and x = ±1 x = + √7/9 and x = ±i x = +i √7/9 and x = ±1 x = +i √7/9 and x = ±I