Factoring (a is not 1)

To find factors that will multiply to a*c, what is our calculator short cut?

​ (a)   = (a*c)/​ (b)  

2nd ​ (c)  

• y
• x
• graph

Given: 2x²+11x+12, what factors can we get from the calculator shortcut?

(1, ​ (a)   ) (3, ​ (b)   ) (6, ​ (c)   )

• 24
• 8
• 4
• 3
• 10
• 15
• 20

As long as you use the two middle boxes, does it matter which factor goes in which box?

• Yes

• No

Are you enjoying the video lesson?

• Yes

• No

When your first box is not just x², what is the MOST IMPORTANT first step when you start factoring out of the box?

• Find two numbers that add to the middle term.

• Find the GCF of the top two boxes.

• Make sure your x is positive.

• Ask MA what the answer is.

You are not finished until you have put the two factors in _________.

• a box

• the calculator

• the computer

• two sets of parentheses

What is the factored form of 2x²+11x+12?

• (2x+3)(2x+4)

• (2x+6)(x+2)

• (2x+3x)(8x+12)

• (2x+3)(x+4)

What are the two factors of 3x²-11x-4?

• (3x+1)

• (3x-4)

• (x-4)

• (x+1)

Factor: 5x²+17x+6

(5x+2)(___)

Do not type parentheses or spaces.