Question

The length and breadth of rectangle are ( x+1) and ( x-1) respectively then which is it's area :- 1.) 4x, 2.) 2x, 3.) x^2-1, 4.) 1
It's very urgent ​

Answer 1

Step-by-step explanation:

Length of rectangle =(x+1)

Breadth of rectangle =(x-1)

Area of rectangle =l×b

=(x+1)(x-1)

X^2-1

Answer 2

Answer:

x^2-1

Step-by-step explanation:

area of rectangle is l *b

so

(x+1) * (x-1)

by using identity (a+b) (a-b) = a^2-b^2

(x+1)*(x-1)=(x^2) (1^2)

= x^2-1 ans

I hope this is helpful