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Factorisation Using Algebraic Identities

If a = -10,...

Question

If $a = - 10$ , find the value of $a^{3} - 5 (a - 5)$ .

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Solution

Put $a = - 10$

Then $a^{3} - 5 (a - 5) = (- 10)^{3} - 5 (- 10 - 5) = - 925$

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, then find the value of

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Factorisation Using Algebraic Identities

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