Question

please help me to find this answer​

Answer 1

Answer:

this is the answer which you want to have

Answer 2

Answer:

4√2 answer

Step-by-step explanation:

x^2-4x-4=0

according to ax^2+bx+c=0

there a=1 ,b=-4 and c=-4

D=√b^2 - 4ac

=√{-4}^{2}-4×1×(-4)

=√16+16

=√32

=√2×2×2×2×2

=4√2