If 2 + i and 2 - i are the roots of the equation x^2 - 4x + c = 0, what is the value of c?

a. -5
b. 5
c. -4
d. 4

Jeremiah 29:11

11 For I know the plans I have for you,” declares the LORD, “plans to prosper you and not to harm you, plans to give you hope and a future.

John 4:18

18 The fact is, you have had five husbands, and the man you now have is not your husband. What you have just said is quite true.”

Isaiah 40:31

31 but those who hope in the LORD will renew their strength. They will soar on wings like eagles; they will run and not grow weary, they will walk and not be faint.

Isaiah 41:10

10 So do not fear, for I am with you; do not be dismayed, for I am your God. I will strengthen you and help you; I will uphold you with my righteous right hand.

Matthew 17:20

20 He replied, “Because you have so little faith. Truly I tell you, if you have faith as small as a mustard seed, you can say to this mountain, ‘Move from here to there,’ and it will move. Nothing will be impossible for you.”

Philippians 4:13

13 I can do all this through him who gives me strength.

Psalm 27:12

12 Do not turn me over to the desire of my foes, for false witnesses rise up against me, spouting malicious accusations.

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system