Polynomials Flashcards
1
Q
Polynomial
A
Expression in the form ax^5 + bx^4 + cx^3 etc..
2
Q
Expression in the form ax^5 + bx^4 + cx^3 etc..
A
Polynomial
3
Q
Coefficient
A
No. in front of a certain variable
4
Q
No. in front of a certain variable
A
Coefficient
5
Q
Two things to remember when writing polynomials
A
You do not require all the powers
Powers must be written in descending order
6
Q
What is a root of a polynomial function
A
a value of x that makes f(x) = 0
7
Q
Factorise 5x^3 - 10x
A
5x (x^2 - 2)
8
Q
Factorise 9x^2 - 16
A
(3x - 4) (3x + 4)
9
Q
Factorise 6x^2 - 7x - 5
A
(2x + 1) (3x - 5)
10
Q
Find the roots of 3x^2 - 12 = 0
A
2 and -2
11
Q
A
12
Q
A
13
Q
Value of x^4 - 5x^3 + 6x + 3 when x = -3
A
14
Q
Value of a missing power
A
0
15
Q
Quotient
A
Product of division
24
Q
A
25
Q
A
26
Q
A
30
Q
A
31
Q
A
32
Q
A
33
Q
A
x=-1
x=2
x=3
34
Q
A
x = 3
x = 3/2
x = -3
35
Q
A
p = 3
36
Q
A
a = 5, b = -22
