(i) \(648 = 2 \times 2 \times 2 \times 3 \times 3 \times 3 \times 3 = 2^3 . 3^4\)
(ii) \(405 = 3 \times 3 \times 3 \times 3 \times 5 = 3^4 . 5\)
(iii) \(540 = 2 \times 2 \times 3 \times 3 \times 3 \times 5 = 2^2 . 3^3 . 5\)
(iv) \(3600 = 2 \times 2 \times 2 \times 2 \times 3 \times 3 \times 5 \times 5 = 2^4 . 3^2 . 5^2\)
Write equations for the following statements:
(i) The sum of numbers x and 4 is 9.
(ii) 2 subtracted from y is 8.
(iii) Ten times a is 70.
(iv) The number b divided by 5 gives 6.
(v) Three-fourth of t is 15.
(vi) Seven times m plus 7 gets you 77.
(vii) One-fourth of a number x minus 4 gives 4.
(viii) If you take away 6 from 6 times y, you get 60.
(ix) If you add 3 to one-third of z, you get 30