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

6 metres cost 3.00. what is the cost of 1 metre?

Polished metals have a metallic luster, which means that?

Describe the differences between a prokaryotic and a eukaryotic cell, and identify their parts.

Which of the following differs when comparing the deep ocean to the intertidal zone? •need for energy •salinity •the amount of sunlight •reliance on phytoplankt

What role does carbon dioxide play in plant life processes

How do I graph f(x)= -cos(x-pi)?

solve for 3x+9=44-2x

How do you write 1.075 in 2 other forms?

Ho long does it take for the Moon to show all its faces? Thank you❤

name 1 element in the periodic table that sounds like a name