What is the factor of

Question

3 years ago

5

{x}^{2} - 6x - 27" alt=" {x}^{2} - 6x - 27" align="absmiddle" class="latex-formula">

2 answers:

Ksju [112] · Answer 1 · 2022-07-14T02:48:22+03:00

Ksju [112]3 years ago

6 0

Answer:

(x - 9)(x + 3)

Step-by-step explanation:

Given

x² - 6x - 27

Consider the factors of the constant term (- 27) which sum to give the coefficient of the x- term (- 6)

The factors are - 9 and + 3, since

- 9 × 3 = - 27 and - 9 + 3 = - 6, thus

x² - 6x - 27 = (x - 9)(x + 3)

andreyandreev [35.5K] · Answer 2 · 2022-07-14T04:32:54+03:00

5 0

Answer:

9 is correct answer

Step-by-step explanation:

${x}^{2} - 6x - 27 \\ = {x}^{2} - 9x + 3x - 27 \\ = x(x - 9) + 3(x - 9) \\ = (x + 3)(x - 9)$

x=9