Question

factorise 27acube -125bcube​

Answer 1

Answer:

Step-by-step explanation:

27a^3 - 125b^3

3a^(3x3) - 5b^(3x3)

3a^9 - 5b^9

Answer 2

$27 {a}^{3} - 125 {a}^{3}$

Take $a^3$ as common.

${a}^{3} (27 - 125)$

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Factorisation steps==}

Take the common terms out.

While taking an exponent out check the powers and take the exponent with the least power out.

When three terms are give in factorisation with one term having the half power of both the other two terms do middle term split.

Always keep a check on the signs when there is a negative sign outside and a positive sign inside the brackets take negative as common and also take negative sign inside the brackets.