Question

Factorise 27x^4 + 343x​

Answer 1

Step-by-step explanation:

27x^4 + 343x

= x(27x^3 + 343)

= x((3x)^3 + (7)^3)

= (x)(3x + 7)(9x^2 + 49 - 21x) [Using a^3 + b^3 = (a + b) × (a^2 + b^2 - ab)]

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Answer 2

Answer:

I don't know answer

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