How to factor
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The document provides steps to factor expressions of the form ax^2 + bx + c: 1) Pick an example expression like 15x^2 + 26x + 8. 2) Find two numbers whose product is the leading coefficient and sum is the middle coefficient. For 15x^2 + 26x + 8, these numbers are 3 and 5. 3) Write the factored form as (ax + b)(cx + d) where ac is the leading coefficient and bd is the constant term.
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How to factor
- 1. How to Factor ax 2 + bx + c Pick an example problem to use, and delete the others: 15x 2 + 26x + 8 2x 2 + 15x + 18 12x 2 + 23x + 5 6x 2 + 19x + 10 12x 2 + 8x + 1
- 2. Step 1: 15x 2 + 26x + 8
- 3. Step 2: 15*8=120 26 1,120 2,60 3,40 4,30 5,24 6,20
- 4. Step 3: (6,20) 15x 2 + 6 +20 + 8 3x(5x 1 + 2) 4(5x + 2)
- 5. Step 4: (3x + 4) (5x + 2)
- 6. Step 5: