2TH §11.3 Factorising trinomials

§11.3 Factorising trinomials
  • Entry ticket: Factorising binomials
  • New theory: Factorising trinomials
  • Homework §11.3 Do exercises 22, 23, S24, S25
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§11.3 Factorising trinomials
  • Entry ticket: Factorising binomials
  • New theory: Factorising trinomials
  • Homework §11.3 Do exercises 22, 23, S24, S25

Slide 1 - Diapositive

Entry ticket

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Now a task for you will follow!

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Task 1:
- open your Notebook
- COPY the Task on the following slide,
- make the TABLE for the PRODUCT and the SUM -like the one you just saw (page 179). 

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Task 1: 
Make the TABLE for:
timer
2:00

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Solution:

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Task 2: 
FACTORISE (making a good use of the TABLE!):
timer
0:30

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Solution:
The factorisation of: 

is:
This is because:    -5  x  -3  =  15 (the Product) and
                                      -5  +  -3  =  -8 (the Sum)
h=(t5)(t3)

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Task 3: see next slide!
The same as with task 1:
- Copy the Task in your Notebook
- Make the Table for the Product 
- Make the factorisation

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Task 3:   Factorise:
Note: do this with or without a TABLE!
timer
2:00

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Factorise:                           Solution:
So the Solution is:

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Homework 
§11.3 Do exercises 22, 23, S24, S25

TIP: if it is still difficult for you, consult the METHOD on p.179 again!

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