Question

Factorise: x^6 - 26x^3 - 27.​

Answer 1

Step-by-step explanation:

x⁶-26x³-27

x⁶-27x³+x³-27

x³(x³-27)+1(x³-27)

(x³+1)(x³-27)

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Answer 2

Answer:

x= 3 or x = -1

Step-by-step explanation:

Given to factorise, x⁶-26x³-27

Adjust middle term as -26x³=x³-27x³

x⁶+x³-27x³-27=0

x³(x³+1)-27(x³+1)=0

(x³-27)(x³+1)=0

x³= 27 or x³= -1

x= 3 or x = -1

This is the required answer