Enter Title

Expressions

400

(2x + y)(2x + y)

4x² + 4xy + y²

500

(3a - b)(2a + 7b)

6a² + 19ab - 7b²

Equations

400

2x - y = 3y, y=? if x=4

2

500

Find x & y in x+y=7 and 2x-y=2

x=3 and y=4

Data Analysis

400

Mean of 5, 6, 7, 8, 9

7

500

mean of a, 2a, 3a, 4a, 5a

3a

Geometry

400

Circumference of a circle whose diameter is 5 in

5Pi in

500

sides of a rectangle=? A=8 in², length is double the width

2 in and 4 in

Advanced Algebra & Functions

400

Multiply the square root of 50 with the square root of 8

20

500

Simplify:(x²-9)/(x+3)

x-3