Question

6.1. Fig. 23 shows three square playgrounds, where the perimeter of Playground 1 is x
metres and the perimeter of the Playground 2 is y metres. Find an expression
for the area of Playground 3.​

Answer 1

Answer:

See solution below.

Explanation:

Write an equation to solve the problem.

Area of rectangle = L(w)

Assuming that the width measures x meters, the length measures x + 5 meters.

500 = x(x + 5)

500 =

x

2

+ 5x

0 =

x

2

+ 5x - 500

As you may already know, a trinomial of the form

a

x

2

+ bx + c, a = 1, you must find 2 numbers that multiply to c and that add to b. Two numbers that multiply to -500 and add to +5 are +25 and -20

0 = (x + 25)(x - 20)

x = -25 and 20

Since a negative length is impossible, the width mesures 20 meters and the length measures 25 meters.

Answer 2

Answer:

x+ym²

Step-by-step explanation:

because if we add the tese two will get one side of that square s×s so x+ym²