108,642 views
8 votes
8 votes
.07 MC)

Which of the following is a solution of x2 + 6x = -22?
O-3±1√13
0-3+√√52
O-6±1 13
0-6±i√√52

User Shabbir Reshamwala
by
2.2k points

2 Answers

18 votes
18 votes

Answer: x = −6±√−52/2

Explanation:

Step 1: Subtract -22 from both sides.

x2+6x−(−22)=−22−(−22)

x2+6x+22=0

For this equation: a=1, b=6, c=22

1x2+6x+22=0

Step 2: Use quadratic formula with a=1, b=6, c=22.

x = −b±√b2−4ac/2a

x = −(6)±√(6)2−4(1)(22)/2(1)

x = −6±√−52/2

If we wanted to simplify this more, it wouldn't be possible because there are no real solutions.

User Oron Werner
by
2.4k points
14 votes
14 votes

Answer:C) 3 - i√13

Explanation:

User Seventh
by
2.7k points