Evaluate Expressions
Evaluate the following expression when n = 2
n2-3n+2
0
Janis was solving the following equation, 2(x - 1) = 20, and her first step was 2x -2 = 20. What property did she use in her first step?
Distributive property
Simplify the following expression
(3n + 2)(n + 3)
3n2+11n+6
Simplify the expression:
(c2)(c6)(c)
c9
Simplify the following expression:
-3x(x - 9)
-3x2+27x
What is the value of the expression 3x2/4 when x = 4
12
Which property is used below to get from step 1 to step 2?
3 + (4 + 9) = (3 + 4) + 9
Associative property of addition
Find the product of 3p + 3 and 3p + 2
9p2+15p+6
Find the product of 2x4 and -8x7
-16x11
Simplify the following expression:
(2x2+9x+10) - (4x2+5x+1)
-2x2+4x+9
Evaluate (2x - 1)(4x - 2) when x = 6
242
Leo is solving the following equation
-4(x-9) + 3x - 4 = 200
His first step is below
-4(x-9) - 4 + 3x = 200
What property did he use to do so?
Commutative Property of addition
Simplify the following expression:
(x - 3)2
x2-6x+9
Simplify the following expression
(3x4y8)/(9xy4)
(1x3y4)/3
When 4(x+1) is added to 8(x -1) the result is
12x - 4
What is the value of the expression 10m2-5m-20 when m = -3
85
Which equation below is using the associative property of multiplication?
1) 3(x - 1) = 3x - 3
2) -1 x (2 x 3) = (-1 x 2) x 3
3) (-1 + 2) + 3 = -1 + (2 + 3)
4) -1 + 2 + 3 = 2 - 1 + 3
2
Express the product of (5x - 2) and (5x -8) as a trinomial.
25x2-50x+16
Find the product of -7m3n6 and -2m-6n
(4x2 - 3x - 21) - (x2 - 6x - 25)
3x2+3x+4
94
Fill in the blanks for which property is used in each step:
Given: 2x + 4 + 3x + (6 + 5)
Step 1: 2x + 3x + 4 + (6 + 5) _______________
Step 2: 2x + 3x + (4 + 6) + 5 _______________
Commutative
Associative
Express the following in simplest form as a binomial
(x + 3)(x - 3)
x2-9
Simplify the following expression:
(32x6y13)/(8x6y16)
4/y3
-3x2-33x+7