Question

Aarea of the rectangle field is (x²-25)m². if the length of the field is (x+5) find the width.​

Answer 1

Answer:

Area of rectangle = l*b

l = (x+5)

let the breadth be b

l*b=(x^2-25) ---------------------------(Given)

(x+5)*b=(x^2-25)

b=(x^2-25)/(x+5) =  (x-5)-------(we can also use property (a+b)(a-b)=a^2-b^2

hence breadth is (x-5)

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Answer 2

Answer:

x-5

Step-by-step explanation:

We know

(a+b)*(a-b)=a²-b²

so

x²-25=x²-5²=(x+5)(x-5)

so

x²-25     =(x+5)(x-5)/(x+5)=x-5

x+5