Algebra Praxis

The sum of 6 and x

• x + 6

• 6/x

• x + 4

• 6x

7g + 5 + 6g  - 3

• 13g - 3

• 12g + 5

• 13g + 2

• 13g - 2

4(-p - 6)

• 4p - 24

• 4p + 24

• -4p + 24

• -4p - 24

take 10 away from s 

• 10 - s 

• s + 10

• s - 10

• s/10

What is an algebraic                     expression for                 "the difference of r and 3"?

• r/3

• r + 3

• r - 3

• 3r

A symbol for an unknown value is called a _______________. It is usually a letter such as a, X or Y.

• Constant

• Coefficient

• Operator

• Variable

There are 12 packets of crisps in a big pack. I buy n big packs of crisps How many packets of crisps have I bought?

• 12 + n

• n - 12

• 12n

• 12/1

• 13x¹⁷y²³z⁸

• 10x¹⁵y²³z⁶

• 13x²³z⁸

• 15x¹⁷y²⁷z⁸

Opera:
(x²+5x-2)(4x+3) =

• 4x³+23x²+7x-6

• 4x³+3x²+7x-6

• x³+23x²+7x-6

2x·5x³·(-2x⁷)

• 5x¹¹

• 5x¹⁰

• -20x¹⁰

• -20x¹¹