Adding
Subtracting
Simple
Hard
Definitions
100

(3x+2)+(2x+4)

5x+6

100

(4x+2)-(2x+1)

2x+1


100

(3m+4m2-7)+(-5m-9+2m)

4m2-16

100

(−4k4 + 14 + 3k4) + (−3k4 − 14k2 − 8)

−7k4− 11k2 + 6

100

Terms with the same variable and the same exponent

Like Terms

200

(5x2+7)+ (5x2+9)

10x2+16


200

(5x2+5)-(3x2+1)

2x2+4

200

(8x2−1)+(4x2−3x)

12x2−3x−1

200

(3 − 6n5 − 8n4 ) − (−6n4 − 3n − 8n5)

2n5 − 2n4 + 3n + 3

200

The numerical factor of a term

Coefficents

300

(x+6)(x2+1)

x2+x+7

300

(7x2+9x+98)-(7x2+9x+98)

0

300

(8x2−1)−(4x2−3x)

4x2+3x−1

300

(−x4 + 13x5 + 6x3 ) + (6x3 + 5x5 + 7x4 )

18x5 + 6x4 + 12x3

300

An expression consisting of variables and coefficients, with operations of addition, subtraction, and multiplication, but no division by a variable.

Polynomial


400

(7.8x+2)+(3.2x+54)

11+56

400

(a3-2a2)-(3a2-2a3)

5a3-5a2

400

(3y2+5y-4)+(5y2-6y+9)

8y2-y+5

400

(13n2 + 11n − 2n4 ) + (−13n2 − 3n − 6n4 )

−8n4 + 8n

400

Terms that represent fixed numerical values

Constants

500

(0.25x-2)+(1x-9)

1.25x-11

500

(7x2-12y+10)-(x2-45y+35)

6x2+33y-25

500

(3y2+5y-4)-(5y2-6y+9)

-2y2+11y-13

500

(−7x5 + 14 − 2x) + (10x4 + 7x + 5x5 )

−2x5 + 10x4 + 5x + 14

500

a letter that represents the unknown value in an expression

variable