“Grudge Ball”Factoring Review

January 5, 2015

Warm-Up (Monday)

• What is a trinomial?• What does a trinomial look like in factored

form?

Essential Question

• How well do I remember the steps involved in factoring trinomials?

Remember Factoring???

Always look for a GCF first!1. Identify the product and sum.2. Find a factor pair that multiplies to the

product and adds to the sum.3. Build 2 fractions.4. Simplify the fractions.5. Fix your binomials with simplified f’s and a’s.

• (ax + f1)(ax + f2)

Activity – “Grudge Ball”

• Teams of 4 – Every member needs a board.• Number each player 1 – 4.• Come up with a team name and write it on

the board with 10 x’s underneath.

Rules

• Erase 2 x’s from anywhere on the board with each correct answer.

• Erase more by making a basket from the 2 or 3 point lines.

• If you run out of x’s you can gain them back with a correct answer rather than taking from other teams.

• The winner is the team with the last x (or the most if we run out of time).

Let’s Play!

Factor: x2 – 15x + 36

• (x – 12)(x – 3)

Factor: x2 – x – 2

• (x + 1)(x – 2)

Factor: x2 – 121

• (x + 11)(x – 11)

Factor: x2 – 12x + 11

• (x – 1)(x – 11)

Factor: x2 + 2x – 99

• (x – 9)(x + 11)

Factor: x2 – 5x

• x(x – 5)

Factor: x2 – 7x – 18

• (x + 2)(x – 9)

Factor: x2 – 11x + 18

• (x – 2)(x – 9)

Factor: x2 – 36

• (x – 6)(x + 6)

Factor: x2 – 15x + 44

• (x – 11)(x – 4)

Factor: x2 – 10x + 16

• (x – 2)(x – 8)

Factor: x2 + 11x – 12

• (x + 12)(x – 1)

Factor: x2 – 15x + 54

• (x – 9)(x – 6)

Factor: x2 – x

• x(x – 1)

Factor: x2 + 8x

• x(x + 8)

Factor: x2 – 8x + 15

• (x – 5)(x – 3)

Factor: x2 + 5x – 14

• (x + 7)(x – 2)

Factor: x2 – 9x + 20

• (x – 4)(x – 5)

Factor: x2 + 13x + 40

• (x + 5)(x + 8)

Factor: x2 + x – 30

• (x + 6)(x – 5)

Factor: 3x2 + 18x – 21

• 3(x – 1)(x + 7)

Factor: 12x2 – 18x + 6

• 6(x – 1)(2x – 1)

Factor: 7x2 + 23x + 6

• (7x + 2)(x + 3)

Factor: 16x2 + 44x + 10

• 2(2x + 5)(4x + 1)

Factor: 14x2 + 16x + 2

• 2(7x + 1)(x + 1)

Do we need more questions?

Reflection

• Do I feel like I am ready to continue with factoring tomorrow?