Sangeetha Pulapaka

STEP 1: Recall what is a radical expression

STEP 2: Recall what are prime factors of a number

STEP 3: Recall how to find prime factorisation of a number

STEP 4: Recall the law of exponents

STEP 5: Simplify the radical expression


= \sqrt{2\times 2\times 3\times 3\times 7}

Using the law of exponents 2^{1}\times2^{1} = 2^{2} = 4 (when the bases are the same the powers can be added)

= \sqrt{4.9.7}