Question

Find all real solutions of the equation.
x7 + 64x4 = 0

Answer 1

Let's solve your equation step-by-step.

`x^7+64x^4=0`

Step 1: Factor left side of equation.

`x^4(x+4)(x^2-4x+16)=0`

Step 2: Set factors equal to 0.

`x^4=0` or
`x+4=0` or
`x^2-4x+16=0`

`x^4=0` or
`x=0`

Answer:

x=0 or x=0 or x=−4

I hope this help you :)