Question

Which of the following is a factor of x2 − 6x − 27?

Answer 1

X^2-6x-27 = (x-9)(x+3), therefore (a) is the correct answer

Answer 2

Answer:

Factors are  x = -3 ,  x = 9.

Step-by-step explanation:

Given  : x² − 6x − 27 = 0.

To find :  factor.

Solution : We have given that

x² − 6x − 27 = 0.

On factoring

x² − 9x  +  3x − 27 =0 .

Taking common x from first two term and 3 from last two terms.

x ( x -9) +3 (x -9) = 0.

On grouping

(x +3) ( x -9) = 0.

For x + 3 = 0

x = -3 .

For x -9 =0

x = 9.

Therefore, Factors are  x = -3 ,  x = 9.