What is factor s^2-4s-21 ?

The solution to factor s^2-4s-21 is (s+3)(s-7)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

factor s^2-4s-21

factor

s^{2} - 4 s - 21

(s + 3) (s - 7)

Solution steps

s^{2} - 4 s - 21

Break the expression into groups

= (s^{2} + 3 s) + (- 7 s - 21)

Factor out

s

from

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

Factor out

- 7

from

- 7 s - 21 : - 7 (s + 3)

= s (s + 3) - 7 (s + 3)

Factor out common term

s + 3

= (s + 3) (s - 7)

20 y^{2} + y - 1

- 2 (5 v - 12) > 6 - v

x^{3} - 3 x^{2} - 10 x + 24

e^{l n (a)}

- lo g_{7} (125) = b