Question

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

Answer 1

Answer:

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 :)