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5 – 4 Multiplying Binomials Mentally. Objective to find the product of two binomials mentally. 5 – 4 Multiplying Binomials Mentally. Example 1: (2x + 5)(3x – 4). 5 – 4 Multiplying Binomials Mentally. Example 1: (2x + 5)(3x – 4) F O I L. 5 – 4 Multiplying Binomials Mentally.
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5 – 4 Multiplying Binomials Mentally • Objective to find the product of two binomials mentally.
5 – 4 Multiplying Binomials Mentally • Example 1: (2x + 5)(3x – 4)
5 – 4 Multiplying Binomials Mentally • Example 1: (2x + 5)(3x – 4) • F • O • I • L
5 – 4 Multiplying Binomials Mentally • Example 1: (2x + 5)(3x – 4) • F-irst terms • O • I • L
5 – 4 Multiplying Binomials Mentally • Example 1: (2x + 5)(3x – 4) • F-irst terms • O-outside • I • L
5 – 4 Multiplying Binomials Mentally • Example 1: (2x + 5)(3x – 4) • F-irst terms • O-outside • I-inside • L
5 – 4 Multiplying Binomials Mentally • Example 1: (2x + 5)(3x – 4) • F-irst terms • O-outside • I-inside • L-ast
5 – 4 Multiplying Binomials Mentally • Example 1: (2x + 5)(3x – 4) • F-irst terms • O-outside • I-inside • L-ast
5 – 4 Multiplying Binomials Mentally • Example 1: (2x + 5)(3x – 4) • F-irst terms • O-outside • I-inside • L-ast • Always x raised to the 2nd power.
5 – 4 Multiplying Binomials Mentally • Oral exercises: everyone gets one: • P. 201 1 – 18 • Homework Written Exercises: • P. 201 1 – 30 ALL • Practice • Practice • Practice