(4) According to the rules, when two numbers are multiplied having the same base, their exponents are added. On the other hand, when a number is divided by another number having same base, the Practice test 2 exponent value of the denominator is subtracted from the exponent of the numerator.So, 41×44÷42=41×4(4–2)=41+2 =43 Since 43=4? On comparing, ? = 3