What is factor j^2-2j-15 ?

The solution to factor j^2-2j-15 is (j+3)(j-5)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

factor j^2-2j-15

factor

j^{2} - 2 j - 15

(j + 3) (j - 5)

Solution steps

j^{2} - 2 j - 15

Break the expression into groups

= (j^{2} + 3 j) + (- 5 j - 15)

Factor out

j

from

j^{2} + 3 j : j (j + 3)

Factor out

- 5

from

- 5 j - 15 : - 5 (j + 3)

= j (j + 3) - 5 (j + 3)

Factor out common term

j + 3

= (j + 3) (j - 5)

j^{2} - 17 j + 72 = 0

s^{2} - 1 = 0

(\frac{1}{2} - 10) \div (\frac{2}{3} + \frac{3}{5})

x^{2} + 2 x - 7 = 0

3 x > 9