Algebra - Expanding and collecting like terms
Expanding and collecting like terms
Sandra had a poster of her favourite sports star. The length of the poster
is 10 cm longer than the width.
(a) If the width is 25 cm, what is the length of this poster?
(b) What is its area?
(c) If the width was _x_ cm, write an expression for the length of the
poster in terms of_ x._
(d) Write an expression for the area of this poster in (i) factorised
form; and (ii) expanded form
(e) Check your answers in (d) by finding the area when the width is 25 cm.
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