(132)7 × (132)? = (132)11.5.
If 7(x - y) = 343 and 7(x + y) = 16807, what is the value of x?
(0.04)-2.5 = ?
(6)6.5 × (36)4.5 ÷ (216)4.5 = (6)?
(6)6.5 × (36)4.5 ÷ (216)4.5
= (6)6.5 × [(6)2]4.5 ÷ [(6)3]4.5
= (6)6.5 × (6)9 ÷ (6)13.5
= (6)(6.5 + 9 - 13.5)
= (6)2
if 6m = 46656, What is the value of 6m-2
Solution 1
Solution 2
10222 ÷ 10220 = ?
If m and n are whole numbers and mn = 196, what is the value of (m - 3)(n+1) ?
mn = 196
We know that 142 = 196
Hence we can take m = 14 and n = 2
(m - 3)(n+1) = (14 - 3)(2+1) = 113 = 1331
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