निम्नलिखित को घातांकिय रूप में व्यक्त कीजिए। (i) 6 × 6 × 6 × 6 (ii) y × y (iii) b × b × b × b (iv) 5 × 5 × 7 × 7 × 7 (v) 2 × 2 × a × a (vi) a × a × c × c × c × d

$$
648 = 2 \times 324 = 2 \times 2 \times 162 = 2 \times 2 \times 2 \times 81 = 2 \times 2 \times 2 \times 3 \times 27 = 2 \times 2 \times 2 \times 3 \times 3 \times 9 = 2 \times 2 \times 2 \times 3 \times 3 \times 3 \times 3
$$

$$
648 = \boxed{2^3 \times 3^4}
$$

$$
405 = 5 \times 81 = 5 \times 3 \times 27 = 5 \times 3 \times 3 \times 9 = 5 \times 3 \times 3 \times 3 \times 3
$$

$$
405 = \boxed{3^4 \times 5}
$$

$$
540 = 2 \times 270 = 2 \times 2 \times 135 = 2 \times 2 \times 3 \times 45 = 2 \times 2 \times 3 \times 3 \times 15 = 2 \times 2 \times 3 \times 3 \times 3 \times 5
$$

$$
540 = \boxed{2^2 \times 3^3 \times 5}
$$

$$
3600 = 36 \times 100 = (2^2 \times 3^2) \times (2^2 \times 5^2)
$$

$$
3600 = \boxed{2^4 \times 3^2 \times 5^2}
$$

$$
10^3 = 10 \times 10 \times 10 = 1000
$$

$$
2 \times 1000 = \boxed{2000}
$$

$$
7^2 = 7 \times 7 = 49
$$
$$
2^2 = 2 \times 2 = 4
$$

$$
49 \times 4 = \boxed{196}
$$

$$
3^4 = 3 \times 3 \times 3 \times 3 = 9 \times 9 = \boxed{81}
$$

$$
(-3)^2 = (-3) \times (-3) = 9
$$
$$
(-5)^2 = (-5) \times (-5) = 25
$$

$$
9 \times 25 = \boxed{225}
$$

$$
3^2 = 3 \times 3 = 9
$$
$$
10^4 = 10 \times 10 \times 10 \times 10 = 10000
$$

$$
9 \times 10000 = \boxed{90000}
$$

$$
(-2)^3 = (-2) \times (-2) \times (-2) = 4 \times (-2) = -8
$$
$$
(-10)^3 = (-10) \times (-10) \times (-10) = 100 \times (-10) = -1000
$$

$$
(-8) \times (-1000) = \boxed{8000}
$$