What is the difference between an expression and an equation?
Expressions don't have equals signs and equations do have equal signs
q - 16.35 = 17.8
q = 34.15
2y + 4 = 14
x = 5
Combine Like Terms:
9x + 22x3 + 4x2 - 5x + 8x2 - 2x3
20x3 + 12x2 +4x
10 - 18 / 3 + 1
5
What does inverse operation mean?
2.17 + x = 5
x = 2.83
3x - 5 = 13
x = 6
Distributive Property:
3p(m + 4n + 6)
3mp + 12mn + 18p
4 x 7 - 62 / 3
16
What does reciprocal mean?
Opposite number
7r = 105
r = 15
6s + 18 = 24
s = 1
Factorization:
16pq + 24pqr - 32p
8p(2q + 3qr - 4)
3(12 - 5) + 8 x 4
53
a) What does an exponent tell you to do?
b) What is the name for an exponent of 2?
c) What is the name for an exponent of 3?
a) It tells you how many times to repeatedly multiply the base by itself
b) Squared
c) Cubed
13 = d
6
78
5t + 4 + 6t = 59
t = 5
Factorization:
36t + 40t - 160st - 20t
4t( 9 + 10 - 40s - 5)
6 x 3 + 4 x 8 - 33
23
Give the proper algebraic names for the different parts in this equation: 2x + 5 = 13
2:
x:
5:
13:
2: coefficient
x: variable
5: constant
13: solution
2 j = 3
5 4
j = 1 7 or 1.875
8
2(3n +9) = 30
n = 2
Distributive Property, then Combine Like Terms:
2(4 - 9z - y) + 2(7 + 3y) - 3z
22 + 15z + 4y
4(3 x 2) + (8 - 3)2 - 62 + 3 x 9 - 23 + 1
33