Question

$(a + b - c)^{3}$
formula​

Answer 1

Answer:

${a}^{3} - 3 {a}^{2}b + 3a {b}^{2} - {b}^{3}$

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Answer 2

Step-by-step explanation:

$({(a + b) - c})³$

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$(a - b)³ = (a³ - b³ - 3a²b + 3ab²)$

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${(a + b)³-c³-3(a+b)²c+3(a+b)c²}$

${a³+b³+3a²b+3ab²-c³-3c(a²+b²+2ab)+3ac²+3bc²}$

${a³+b³-c³+3a²b+3ab²-3a²c-3b²c-6abc+3c²(a+b)}$

${a³+b³-c³+3a²(b-c)+3b²(a-c)+3c²(a+b)-6abc}$