Factoring
Factor: x2 - 7x + 10
(x - 5)(x - 2)
sqrt(81)
+- 9
x - 100 = 0
x = +/- 10
(2 + 7i) - (9 + i)
-7 + 6i
Which has more bones: an adult human skeleton or an adult cow skeleton?
cow (207>206)
Factor: x3 + 4x2 + 7x + 28
(x2 + 7)(x + 4)
sqrt(-50)
+- 5i sqrt(2)
x - 36 = 4
x = +-2 sqrt(10)
What is the complex conjugate of 24 + 5i?
24 - 5i
How many letters are there in the Hawaiian alphabet?
13
Factor: x2 + 2x - 168
(x + 14)(x - 12)
sqrt(360
+- 6 sqrt(10)
2x - 100 = -2
x = +/- 7
(11 - 3i)(11 + 3i)
130
What is the diameter of a basketball hoop in inches?
18 inches
Factor: (x2 - 225)
(x - 15)(x + 15)
2 sqrt(-162)
+- 18i sqrt(2)
3x + 195 = 3
x = +/- 8i
(7 - i)(5 - 3i)
32 - 26i
How many keys are on a standard piano?
88
Factor completely:
2x3 + 3x2 - 8x - 12
(2x + 3)(x + 2)(x - 2)
- sqrt (-64/121)
+- 8/11i
2/3x + 1 = -7
x = +- 2i sqrt3
(3 + 6i)/(2 + 2i)
(9 + 3i)/4
In which year did the Chernobyl nuclear power plant disaster occur?
1986