Solve w^4-9 - ScanMath

Evaluate

w^{4} - 9

To find the roots of the expression,set the expression equal to 0

w^{4} - 9 = 0

Move the constant to the right-hand side and change its sign

w^{4} = 0 + 9

Removing 0 doesn't change the value,so remove it from the expression

w^{4} = 9

Take the root of both sides of the equation and remember to use both positive and negative roots

w = \pm 49

Simplify the expression

More Steps

w = \pm 3

Separate the equation into 2 possible cases

w = 3 w = - 3

Solution

w_{1} = - 3, w_{2} = 3

Alternative Form

w_{1} \approx - 1.732051, w_{2} \approx 1.732051

W^4 9