What are the solutions to the equation 9x^4-36x^2=0 ?

The solutions to the equation 9x^4-36x^2=0 are x=2,x=-2,x=0

Find the zeros of 9x^4-36x^2=0

The zeros of 9x^4-36x^2=0 are x=2,x=-2,x=0

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9 x^{4} - 36 x^{2} = 0

x = 2, x = - 2, x = 0

Solution steps

9 x^{4} - 36 x^{2} = 0

Rewrite the equation with

u = x^{2}

and

u^{2} = x^{4}

9 u^{2} - 36 u = 0

Solve

9 u^{2} - 36 u = 0 : u = 4, u = 0

u = 4, u = 0

Substitute back

u = x^{2},

solve for

x

Solve

x^{2} = 4 : x = 2, x = - 2

Solve

x^{2} = 0 : x = 0

The solutions are

x = 2, x = - 2, x = 0

- x^{2} + 2 x = 7

- 90

150 a^{2} b^{2} c

3 (m + 7) + 9 < 30

30 r^{2} = - 15 r

What are the solutions to the equation 9x^4-36x^2=0 ?
The solutions to the equation 9x^4-36x^2=0 are x=2,x=-2,x=0
Find the zeros of 9x^4-36x^2=0
The zeros of 9x^4-36x^2=0 are x=2,x=-2,x=0