Saturday 2 September 2017

EXPAND 1


Expand 8w(5w + 5 - w)

Solution

= 8w(5w + 5 - w)

= (8w x 5w) + (8w x 5) - (8w x w)

= 40w2 + 40w - 8w2

= [40w2 - 8w2] + 40w collecting like terms

= 32w2 + 40w answer



TRY THIS………..


Expand 4a(9a+ 11 - a)

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