8i + 4 - (3i + 10)
-6 + 5i
6i(12-4i)
72+24i
#7. x2=-90
x= +/- 3 radical 10 i
#1. Radical -32
+/- 4 radical 2 i
What is the conjugate of 10-3i?
10+3i
#3. 3 + 5i + 4 + 2i - (6 - 7i)
1 + 4i
#5. 4i(11-9i)
36+44i
#10. 2x2-6x+5=0
x=3/2 +/- 1/2i
Radical -80
+/- 4 radical 5 i
Rewrite into standard notation.
x2+3x=12
x2+3x-12
Remember that standard notation is ax2+bx+c
-18 - 3i + 11 + 5i
-7 + 2i
(2+4i)(3+3i)
-6+18i
#8. x2+9=-15
x=+/-2 radical 6 i
#2. Radical -144
+/- 12i
What do you multiply by to clear a rational equation?
The Least Common Denominator
-8i - (8 - 5i) + 6i
-8 + 3i
#6. (12+3i)(5-2i)
66-9i
#11. -x2+4x-5=0
Radical -72
+/- 6 radical 2 i
What kind of number a real part and an imaginary part?
Complex Number
#4. -i - (2 + 3i) + 2 + i
-3i
(3+2i)2
5+12i
#9. -6x2 + 17 = 125
x= +/- 3 radical 2 i
Radical -225
+/- 15i
Name three types of linear equations where the equations has 1 solution, infinite solutions, or no solution.
Contradiction, Conditional, or identity