Kuberingsregler Flashcards
1
Q
What is the algebraic rule for the cube of a sum?
A
(a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3
2
Q
What is the algebraic rule for the cube of a difference?
A
(a - b)^3 = a^3 - 3a^2b + 3ab^2 - b^3
3
Q
True or False:
(a + b)^3 = a^3 + b^3
A
False
4
Q
What is the algebraic rule for the sum of cubes formula?
A
a^3 + b^3 = (a + b)(a^2 - ab + b^2)
5
Q
What is the algebraic rule for the difference of cubes formula?
A
a^3 - b^3 = (a - b)(a^2 + ab + b^2)
6
Q
What is the cube root of -27?
A
-3
7
Q
What is the cube of 7?
A
343
8
Q
What is the cube of 11?
A
1331
9
Q
What is the cube of 12?
A
1728
10
Q
What is the cube of 13?
A
2197
11
Q
What is the cube of 14?
A
2744
12
Q
What is the cube of 15?
A
3375
