giraffegirl2 giraffegirl2

04-04-2019
Mathematics

contestada

solve y^2+7y+12=0 by completing the square.

solve y27y120 by completing the square class=

Respuesta :

chikafujiwara chikafujiwara

04-04-2019

Answer:

y = -3, -4

Step-by-step explanation:

Formula is (b/2)^2

So...

(y+7/2)^2 - 1/4 = 0

Add 1/4 to each side

(y+7/2)^2 = 1/4

Square root...

y+7/2 = +-1/2

Add

y = -3, -4

Answer Link

Otras preguntas

what is the value of the expression 3z-3 when z=7

4x squared + 7x +2=0 use quadratic formula

the basement has an area of 864 square feet. the width of the basement is two thirds its length. What is the length of the basement?

Napoleon’s rule made Europeans love France and ended any desire they had to rule themselves. It deprived them of a unified code of law. A. True B. False

Thomas drew a rectangle with an area of 6 square centimeters. what is the greatest possible perimeter for the rectangle ?

Who controlled the area of southern Italy prior to the unification of the country? A. Kingdom of the Two Sicilies B. Austrian Empire C. Papal States D. Kingdom

Which city is located by the Baltic Sea? Moscow Kiev St. Petersburg Volgograd

why does it takes 3 copies of 1/6 to show the same amount as 1copy of 1 / 2

leah has 3 fewer than 4 times as many DVD`s as sonia has. leah has 37 dvds. how many dvds does sonia have?

____________ is the act or process of explaining the meaning of something. a. Nonverbal communication b. Verbal communication c. Observation d. Interpretation