Solve for “X” the quadratic equation X2
- 4X - 8 = 0. Give your answer
correct to three significant figures.
Answers
Answered by
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
Similar questions