Polynomial warmup
Combine like terms:
5x2 + 10x - 3x2 + 8x + 20
2x2 + 18x + 20
Factor
x2 + 8x + 16
(x+4)(x+4)
What is the formula for the AREA of a rectangle?
A = L*W
A farm has a length of 200 meters and a width of 150 meters. Find the area of the farm.
30,000 m2
What sport does Ms. Blackwood coach at DCI?
Ultimate frisbee
Distribute:
2x(5x - 3)
10x2 - 6x
Factor
x2 - 5x - 36
(x-9)(x+4)
What is the vocabulary word that represents the distance around the outside of the shape? (when you add up all the sides)
perimeter
The plot of land for a house has a width of (x+5) and a length of (6x-10). Find the PERIMETER of this plot of land (in terms of X).
14x - 10
What city did Ms. Blackwood live in before moving to Maryland and working at DCI?
Chicago
Multiply:
(x - 4)(x+6)
don't forget to combine like terms in your answer
x2 +6x - 4x - 24
FINAL ANSWER: x2 + 2x - 24
Factor:
4x2 - 81
(2x-9)(2x+9)
Are 6x2 and 8x like terms? Why or why not? (use correct math vocabulary)
No! Like terms have the SAME variable and exponent.
The plot of land for a house has a width of (x+5) and a length of (6x-10). Find the AREA of this plot of land (in terms of X).
6x2 + 20x - 50
What kind of pet does Ms. Blackwood have?
a cat
Multiply:
(x-1)(x2 + x + 1)
x3 - 1
Solve by factoring:
-6x2 = - 18x - 60
6x2 - 18x - 60 = 0
x2 - 3x - 10 = 0
(x-5)(x+2)
x = 5 or -2
What is the square root of 289?
17 (or -17)
...b/c 172 = 289 and (-17)2 = 289
An acorn falls from the top of a 500 ft tall tree all the way to the ground. How many seconds does it take for the acorn to hit the ground?
h= -10t2 + 500
(h = height above ground, t = time in seconds)
Ms. Blackwood is very competitive. Does she usually play video games or board games?
board games!!!!!!!!
What is the greatest common factor of 150x2 and 100x?
50x
Solve by factoring:
3x2 - x = 2
(3x+2)(x-1)
3x+2=0 means x= -2/3
x-1=0 means x=1
Write an example of a polynomial with 3 terms.
ex. x2 + 8x + 12
(many examples that have MULTIPLE terms with numbers, a variable, and exponents)
A square is altered so that one side is increased by 4 feet, while the other side is decreased by 2 feet. The area of the resulting rectangle is 55. Show work to find the area of the original square.
7x7 = 49 square feet
Which TWO are among Ms. Blackwood's favorite shows?
1- Orange is the New Black
2- Squid Game
3- This is Us
4- The Office
1 - Orange is the new black
&
3 - This is Us