4. The length of a rectangle is one metre greater than the width. The area of...

 

Transcribed Image Text:

4. The length of a rectangle is one metre greater than the width. The area of the rectangle is 72 m². Letting the width be xm, show that x²+x-72 = 0. Find the width. [5marks] (b) In an AP of 25 terms, the fourth term is 4, 22nd term is 5. Find the sum of the AP. [5marks] 4. The length of a rectangle is one metre greater than the width. The area of the rectangle is 72 m². Letting the width be xm, show that x²+x-72 = 0. Find the width. [5marks] (b) In an AP of 25 terms, the fourth term is 4, 22nd term is 5. Find the sum of the AP. [5marks]