Algebraic expressions and formulas

What is (a + b) squared?

• 1 2a + 2b
• 2 a² - 2ab + b²
• 3 a² + 2ab + b²
• 4 a² + b²

What is (a - b) squared?

• 1 a² - ab + b²
• 2 a² - 2ab + b²
• 3 a² - b²
• 4 a² + 2ab + b²

If a + b = 5 and ab = 6, what is a² + b²?

• 1 13
• 2 37
• 3 11
• 4 25

What is the value of (101)² using a formula?

• 1 10001
• 2 10101
• 3 10201
• 4 10200

The degree of the polynomial 3x⁴ + 2x² + 1 is:

• 1 1
• 2 2
• 3 4
• 4 3

a² - b² is equal to:

• 1 a(a - b)
• 2 (a + b)²
• 3 (a + b)(a - b)
• 4 (a - b)²

The value of (a + b)(a - b) when a = 5 and b = 3 is:

• 1 34
• 2 64
• 3 16
• 4 4

Expand (x + 2)(x + 3).

• 1 x² + 5x + 6
• 2 2x + 5
• 3 x² + 5x + 5
• 4 x² + 6

The coefficient of x in 7x² + 5x - 3 is:

• 1 -3
• 2 2
• 3 7
• 4 5

An expression with two terms is called a:

• 1 Quadratic
• 2 Monomial
• 3 Binomial
• 4 Trinomial