review 2b
Write the product 3i(5 − 3i) in the form a + bi.
9 + 15i
. Write the quotient 5 /(3 − i) in the form a + bi.
1.5+.5i
Factor the expression x^2 + 36.
(x+6i)(x-6i)
Jason
friday the 13th
“Do you like scary movies?”
Scream
Use square roots to solve the equation x^2 = −121 over the complex numbers.
x= 11i and x =-11i
Determine the number of real solutions of the system y = x2 + 1
y = 1
1
Saw Puppet's Name
Billy
freddy
a nightmare on elm street
"I see dead people"
the sixth sense
A toy cannon ball is launched from a cannon on top of a platform. The equation h(t) = −5t^2 + 15t + 10 gives the height h, in meters, of the ball t seconds after it is launched. Will it reach 24m?
when does it hit the ground?
no
3.6 seconds
What value(s) of b will cause 8x2 + bx + 2 = 0 to have one real solution?
8 and -8
Daily Double
Name the horror movie clown named Art
chucky
child's play
“Whatever you do, don’t fall asleep.”
A Nightmare on Elm Street
Solve −3x^2 − 6x + 21 = 6x + 8 by writing a linear-quadratic system and solving using the intersection feature of a graphing calculator.
0.89
-4.89
Solve x^2 − 4x − 2 = 0
2 + sqrt 6 , 2 - sqrt 6
on "the conjuring" the doll's name
Annabelle
Ghostface
scream
“Do you want to play a game?”
Saw
Solve 0 = x^2 + 2x + 10.
-1 +3i , -1-3i
Solve x^2 + 5x + 8 = 0
(-5 + i sqrt7) / 2 (-5 - i sqrt7) / 2
To summon him say his name three times.
Beetlejuice
Micheal
Halloween
"in space no one can hear you scream"
Aliens