- 5 + 7
2
Is this a binomial or trinomial?
3z2 + 4x -12
Trinomial. "Tri" represents the letter three in classical Greek.
(3x + 5y ) + (4x + 2y)
7x + 7y
no flipping!
(3x + 5y) - (2x + 3y)
x + 2y
flip signs from (-) in middle and to the right
........... - (2x + 3y)
........... +(-2x - 3y)
Simplify
24
2 * 2 * 2 * 2 = 16
not 2 * 4!
7/7 - 3/7
4/7
If variables are the same on the bottom, subtract across.
Write down your definition of what a like term is. Be very comprehensive and specific!
Terms are only considered alike if they have the same variables raised to the same exponents.
3x2 + 5x2 7x + 2x2
like terms not like terms
7z2 + 8x
(5x2 + 7x) - ( -2x + 3x2)
2x2 + 9x
............- (-2x + 3x2)
flip
............+(+2x - 3x2)
Simplify
42 + 25
(4 * 4) + (2 * 2 * 2 * 2 * 2)
= 16 + 32
= 48
cannot simply add exponents across! follow order of operations (PExponentsMDAS) exponents before +
Add and simplify!
4/5 + 2/3
1 and 7/15, or 22/15
must find a least common multiple (LCM) least common denominator before adding fractions!
Daily Double!
True or False
the degree of this term = 5
5x2x3
True! If a term contains different variables multiplied by one another, add the exponents to determine its degree!
(-3w + 5z - 8y) + (3z - 4y + 8w)
5w + 8z - 12y
(3y + 12x2 - 5z) - (4x2 - 2y + 4z)
8x2 - 9z + 5y
Simplify
40
1
all numbers raised to the power of 0 = 1.
Round .0378 to the nearest thousandth.
.038
thousandths place is the third decimal place on the right (tenths, hundreths, thousandths, ten thousandths). To round, look at the number to the right of the place value which you are rounding to. If the number to the right is higher than 5, round the number in the selected place value up (if lower, down). The numbers to the right are erased or replaced with 0 whether you round up or down.
Label the constants, variables, exponents and coefficients correctly.
3x2 + 7y - 12
constant = -12
variables = x, y
exponents = 2
coefficients = 3, 7
DAILY DOUBLE!
(8x + 4x2 + 2x3) - (-8x3 + 4x2 -2x)
10x3 + 10x
confusing huh?
(8z2 - 5w + 9y) - (-3w + 3z2 + 8)
5z2 - 2w + 9y + 8
Simplify. Answer should only contain positive exponents.
z-5
1/z5
place under a fraction sign and change sign to positive!
Add the numbers and round to the ten-thousandth.
.00345 + .00002
= .00347
round to ten-thousandth
.0035
Is this a polynomial, a binomial, or both?
5z + 12z2
Monsternomial!

(4z + 12y2 + 3x - 11w) + (13x - 21w + 5y2 - 6w)
17y2 + 16x - 38w + 4z
Mr. Fordney got it wrong 3 times in a row!
Monsternomial!

(7y + 3z3 - 8z2 + x) - (- 2z3 - 3y + x + 5y)
5z3 - 8z2 + 2y

Simplify
5-3
1/53
= 1/(5*5*5) or 1/5/5/5