3. Find equivalent ways to rewrite (without using calculator) the following expressions: (a) 2 3a4 (b) (3p3 94) 2 (C) 61/261/361/6 (d) 2x3 342 (e) (d1/2) 6 4. Are there errors in the following responses? If so explain the error. (a) Asked to find an expression equivalent to ro- r', a student responded x3 (b) Asked to find an expression equivalent to a student responded 26 - 73 (c) Another student said that 28 5 is equivalent to 6