Algebra Flashcards
1
Q
4a =
A
a + a + a + a
2
Q
7x =
A
7 × x
3
Q
ax =
A
a X x
4
Q
You can multiply different variables but what can you not do?
A
You cannot add them
5
Q
Coefficient =
A
Number infront of the variable
6
Q
Variable =
A
Letter behind the coefficient
Eg. 2y
2= coefficient
Y= variable
7
Q
3 x 2y =
A
3 x 2 x y = 6y
8
Q
5b x 7x x 2c =
A
5 x 7 x 2 x b x X x c = 70bcx
9
Q
X + X =
Y x Y =
A
2x
Y²
10
Q
n³ x n³
A
N⁶
11
Q
4a² x a⁵ =
A
4a⁷
12
Q
(X - 4)(3x +6) =
A
Do boxes to get answers
3x² - 12x + 6x - 24
3x² - 6x - 24
13
Q
Substitution rule
A
When you sub in, Always put brackets around the replacement
14
Q
If x = -2
What is x + 5
A
(-2) + 5 = 3
15
Q
6x + 2 = 14
A
6x + 2(-2) = 14(-2)
(÷6)6x = 12(÷6)
X= 2
