Question

Solve for “X” the quadratic equation X2

- 4X - 8 = 0. Give your answer

correct to three significant figures.​

Answer 1

Answer:

Step-by-step explanation:

x²-4x-8=0

x= (-b±√b²-4ac)/2a

a=1 b=-4 c=-8

x=(4±√16-32)/2

=2±(√-16)/2

=2±2√-1

=2±2i

therefore the roots are 2+2i and 2-2i