Question

Rakesh solved some problems of exponents in the following way. Do you agree with
solutions? If not why? Justify your argument.

$x - 2 = \sqrt{x}$
​

Answer 1

Answer:

Step-by-step explanation:

Justification:

(i)

when Bases are equal powers should be added.

-3 + (-2) = -3-2 = -5

so x^-5 is the right one

(ii)

When there exists equal bases in numerator and denominator, but with both having different powers, subtract power of denominator from numerator.

3 - 2 = 1

so x is the right answer

(iii)

When a power is negative, it indicates inverse or reciprocal.

so 1/x² is right one.

(iv)

same as 3rd, -ve power

3/x is the correct answer

Hope it helps