Phillyd80 Phillyd80

04-08-2017
Mathematics

contestada

Solve the equation by factoring. z^2-6z-27=0

Respuesta :

Banabanana Banabanana

04-08-2017

z² - 6z - 27 = 0
z² + 3z - 9z - 27 = 0
z(z+3) - 9(z+3) = 0
(z+3)(z-9) = 0

z + 3 = 0 or z - 9 = 0
z = -3 z = 9

Answer: z=-3 and z=9

Answer Link

Otras preguntas

Which term identifies the effects of the buildup of stationary electric charges on everyday objects caused by the transfer of electrons from one object to anot

Solve for x. Show all steps: 1/5x+1/4x=1/2x+2 Simplify. -2/5(15x-20y+5) BTW how do you add pictures?

the probability of winning a game is 20%. if you play 20 times, how many times should you except to win?

Which of the following did not contribute to the rise of Kush? iron the Nile River isolationism trade

When does new characteristics appear before?

Does a cell ever reach equilibrium

In the word unicorn, uni- means: a. Magical b. Horn c. One d. Zero

answer quickly I need this

how to convert a fraction to a percent???

The dimensions of a large room are double the dimensions of a small room. Both rooms are rectangular prisms. The volume of the small room is 10 cubic metres. Wh