24-09-2017
Mathematics

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How do I solve this problem?

How do I solve this problem class=

Respuesta :

mreijepatmat mreijepatmat

24-09-2017

Remember mᵃ.mᵇ = mᵃ⁺ᵇ (m and m should be the SAME)

And m⁻ᵃ = 1/mᵃ

Hence

(a⁴.b⁻²).a³ = b⁴/a⁵

a⁴⁺³.b⁻² = b⁴/a⁵

a⁷./b² = b⁴/a⁵

Cross multiplication:

a⁷.a⁵ = b⁴.b²
a⁷⁺⁵ = b²⁺⁴
a¹² = b⁶

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