Math, asked by prasunpanigrahi003, 10 months ago

1-27z^3 factorise the following expression​

Answers

Answered by mysticd
2

Answer:

1 - 27z³ = (1-3z)(1+3z+9z²)

Step-by-step explanation:

Given expression 1 - 27z³

= 1³ - (3z)³

= (1-3z)[1²+1×3z+(3z)²]

/* By algebraic identity:

-b³ = (a-b)(+ab+) */

=(1-3z)(1+3z+9z²)

Therefore,

1 - 27z³ = (1-3z)(1+3z+9z²)

Answered by saritasahu34
1

Answer:

=1-27z^3

=(1)^3-(3z)^3

=(1-3z)(1+3z+9z^2)

Similar questions