Mixed Review
How do you find the perimeter of a rectangle?
Add the side measurements together.
-15a3bc + 6a3bc
-9a3bc
(x2)(x3)
x5
(x2)5
x10
x9/x3
x6
True or False? We change the variables and exponents when adding monomials.
False
-25x4y3 - 25x4y3
-50x4y3
(4x2)(3x5)
12x7
(2x2y)5
32x10y5
b5/b5
1
-4x6(3x4)2
-36x22
10m2 n + 7 mn2 - m2n
9m2n + 7mn2
(ab)(6a5b)(-ab)
-6a7b3
(-2p4q6)2
4p8q12
(30x12)/(-10x)
-3x11
How do you find the area of a rectangle?
Length * Width
Subtract -5ab2 from -10ab2
-5ab2
-4(rs2)(-5r4s)
20r5s3
(-4c3d4)4
256c12d16
-x8/-x7
x
9x10y2 + (2x3y)(5x7y)
19x10y2
From -9cd2, subtract -2cd2
-7cd2
(1/4)(8mn)(-6m2n2)
-12m3n3
(-3x2)3
-27x6
(-42x7y5)/(-6x7y2)