Solve: 16x2-81-0

Answer 1

To solve the equation 16x^2 - 81 = 0, we first need to move the constant term to the other side of the equation:

16x^2 = 81

Next, divide both sides by 16 to isolate x^2:

x^2 = 81/16

Now, take the square root of both sides to solve for x:

x = ±√(81/16)
x = ±√(81)/√(16)
x = ±9/4

Therefore, the solutions to the equation 16x^2 - 81 = 0 are x = 9/4 and x = -9/4.