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254.1 ÷ 53.3 × 1256.7 = 25X1). 142). 30.63). 12.54). 7.5 |
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Answer» By using the law of indices? Laws of Indices?- 1-? am × an = a{m + n} 2-? am ÷ an = a{m – n} 3-? [(am)n] = amn 4-? (a)(1/m) = m√a 5-? (a)(-m) = 1/am 6-? (a)(m/n) = n√am 7-? (a)0 = 1 The equation will be SOLVED as 254.1 ÷ 53.3 × 1256.7 = 25X ⇒ (52)4.1 ÷ 53.3 × (53)6.7 = (52)X ⇒ 58.2 ÷ 53.3 × 520.1 = 52X ⇒ 5(8.2 – 3.3)× 520.1 = 52X ⇒ 54.9× 520.1 = 52X ⇒ 5(4.9 + 20.1) = 52X ⇒525 = 52X ⇒ 25 = 2X ∴ X = 12.5 |
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