Question

The area of rectangular paper is 4 -x² then its dimensions are

Answer 1

Answer:

Dimensions of rectangular paper is (2+x) & (2-x)

Trick

Area of rectangular paper = 4 - x²

We know that,

Area of rectangular = Length x breath

4 - x² = (2+x)(2-x)

According to algebraic equation,

a² - b² = (a + b) (a - b)

Now,

Length = (2 + x)

breath = (2 - x)