if (a-b/a)+4 =0,find the value of the following using the property of expansions . a³-b³/a³+4³
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Step-by-step explanation:
The given expression (a-b/a) + 4 = 0
a - b = -4a
(a - b)^3 = (-4a)^3
a^3 - b^3 + 2ab^2 - 2a^2b = -64 a^3
(a^3 - b^3) + 2ab (b-a) = - 64 a^3
(a^3 - b^3)/a^3 + 2ab(b-a) /a^3 = - 4^3
(a^3 - b^3)/a^3 + 4^3 = - 2ab(b-a)/a^3
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