x 2 +8x−4=−4

The equation you've given is x^2 + 8x - 4 = -4.

Let's solve it step by step:

Step 1: Simplify the equation by moving -4 from the right side to the left side. This gives us:

x^2 + 8x - 4 + 4 = 0

Step 2: Simplify further:

x^2 + 8x = 0

Step 3: Factor out an x:

x(x + 8) = 0

Step 4: Set each factor equal to zero and solve for x:

x = 0 and x + 8 = 0

So, the solutions to the equation are x = 0 and x = -8.