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

Select the circle containing inaccurate information that does not align with the big bang theory.

Which atom ha the electron configuration 12 2 2 2p 6 3 2 3p 6 4 2 3d 10 4p 6 5 2 4d 2 ? Why?

Lauren had 3/4 gallon of paint he poured in an additional 1/8 gallon from another can. How much paint doe lauren have?

Read the excerpt from "The Gift of the Magi." Jim stopped inside the door, as immovable as a setter at the scent of quail. His eyes were fixed upon Della, and t

When adding , what step must be completed first? finding the least common denominator. Reducing the fractions. Adding the numerators, but keeping the denominato

Cara wants to build an 80 foot long rectangular sheep pen in back of her barn. If she bought 180 feet of fencing and used her barn wall as one side of the pen e

Ayana is making 6 scarves that each require 114 yards of purple fabric and a certain amount of blue fabric. She will use 10 yards in all. Which equation can be

what are the two basic types of ecological succession which are categorized mainly based on how many nutrients - or lack thereof - are already present in the so

In a city with an 8.5% tax rate, what would be the total cost for a $66.00

Andrew invet $200 into an account with a 2. 9% interet rate that i compounded emiannually. How much money will he have in thi account if he keep it for 5 year?