Question

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Answer 1

a) ( x + 1 ).( x + 3 )

x² + 3x + x + 3

x² + 4x + 3

b) ( x - 1 ).( x + 5 )

x² + 5x - x - 5

x² + 4x - 5

c) ( x + 7 ).( x - 2 )

x² - 2x + 7x - 14

x² + 5x - 14

d) ( x - 4 ).( x - 6 )

x² - 6x - 4x + 24

x² - 10x + 24

e) ( 2x + 3y ).( x – 5y )

2x² - 10xy + 3xy - 15xy²

2x² - 7xy - 15xy²

f) ( x + 5 ).( x + 5 )

x² + 5x + 5x + 25

x² + 10x + 25