Lesson 5; Factoring using special products

Expand $$\left(a+b\right)^2$$  

Expand $$\left(a-b\right)^2$$  

Expand (a-b)(a+b)

Which of these is the expansion of (x+1)²

Which of these is the expansion of (x-1)²

Which of these is the expansion of (x+1)(x-1)

Which of these is the expansion of (x+2)²

Which of these is the expansion of (x-2)(x+2)

Which of these is the expansion of (x-2)(x+2)

Is this an expansion of a special product?
x² + 16x + 64

Which of these is a perfect square trinomial?

Which if these is NOT a perfect square trinomial?

Factor the polynomial

$$k^2+14k+49$$  

Factor the polynomial

$$m^2-18m+81$$  

Factor.

x² + 24x + 144

Factor.

x² - 30x + 225

Factorize

x² + 24x + 144

Factorize;

x² - 30x + 225

Factor

x² + 18x + 81

Factorize;

x² - 20x + 100