4.1/4.2
Solve the following by graphing:
x2+2x-3=0
x=-3 or 1
Factor the following:
x2+x-6
(x+3)(x-2)
Simplify.
(1+5i)-(1+2i)
3i
Solve the following using the Square Root Property:
x2-8x+16=1
x=3 or 5
Find the discriminant of the following equation and with that number determine how many roots:
x2-8x+16=0
0, 1 rational root
Solve the following by graphing:
-x2-6x-9=0
x=-3
Factor the following:
5x2-17x+6
(5x-2)(x-3)
Simpilfy.
(-3-3i)+(-7+3i)
-10
Solve the following using the Square Root property:
x2+4x+4=1
x=-1 or -3
Find the discriminant of the following equation and with that number determine how many roots:
3x2-2x=0
4, 2 rational roots
Solve the following by graphing:
3x2+4x+3=0
No real solutions.
Solve the following:
(3x+1)(x+9)=0
x=-1/3 or 9
Simplify.
(8-i)(6+6i)
54+42i
Find the value of c that makes the trinomial a perfect square:
x2+5x+c
c=25/4 or 6.25
Solve the following using the Quadratic Formula:
x2-4x-11=0
2+sqrt(15) or 2-sqrt(15)
Solve the following by graphing:
x2-6x+5=0
x=1 or 5
Solve the following:
x2+6x+8=0
x=-4 or -2
Simplify.
(-3+8i)(-2+3i)
-18-25i
Solve the equation by completing the square:
x2-13x+36=0
x=4 or 9
Write the following in vertex form:
y=x2+6x+4
y=(x+3)2-5
Solve the following by graphing:
-x2+2x-4=0
no real solutions
Solve the following:
2x2+3x-2=0
x=1/2 or -2
Simplify.
(5+8i)/(7+7i)
(13+3i)/14
Solve the equation by completing the square:
2x2+7x-4=0
x= -4 or 1/2
Write the following in vertex form:
y=2x2-4x-5
y=2(x-1)2-7