All categories

2 years ago

V2+4v-21=0 (solve by factoring)

Mathematics

2 answers:

Genrish500 [490]2 years ago

7 0

Answer:

The answer is (v - 3)(v + 7).

Step-by-step explanation:

First, you have to elaborate it :

v² + 4v - 21 = 0

v² - 3v + 7v - 21 = 0

Next, you have to collect like terms :

v(v - 3) + 7(v - 3) = 0

(v - 3)(v + 7) = 0

frozen [14]2 years ago

6 0

Answer: (v + 7)(v -3)

Step-by-step explanation:

(v +7)(v -3)

v x v = v^2

v x -3 = -3v

7 x v = 7v

7 x -3 = -21

v^2 -3v +7v -21 = v^2 +4v -21 = 0

You might be interested in

Can someone answer 14,15 and 16? Thank you!

Sergio039 [100]

14= 4 pi/6 pi = 2/3
15 = 8 pi/10 pi = 4/5
16 = no

4 0

3 years ago

Simplify (4x + 12) - (6x - 18)

bixtya [17]

Answer:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

4*x-12-(6*x-18)=0

Step-by-step explanation:

Pull out like factors :

-2x + 6 = -2 • (x - 3)

5 0

2 years ago

Read 2 more answers

Can someone help me really please

NARA [144]

Answer:

Step-by-step explanation:

3/3 = 1

4 0

2 years ago

Read 2 more answers

Find the distance between (2.0) and (8, -3)

zvonat [6]

Answer:

6, 3

Step-by-step explanation:

4 0

2 years ago

Sam average 13 points per game in her first three basketball games. She averaged 14.5 points in her first four games. How many p

kvasek [131]

Answer:

Step-by-step explanation:

13×3= 39

14.5×4= 58

58-39= 19

5 0

2 years ago

V2+4v-21=0 (solve by factoring)​

V2+4v-21=0 (solve by factoring)