Sunday, 24 December 2017

EXPAND 1


Expand 8w(5w – 7 + w)

solution

= 8w(5w – 7 + w)

= (8w x 5w) – (8w x 7) + (8w x w)

= 40w2 – 56w + 8w2

= (40w2 + 8w2)  – 56w

= 48w2 – 56w answer
  

TRY THIS………..


Expand 3a(7a+ 30 - a)



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