starry13567 starry13567

24-07-2015
Mathematics

contestada

how do solve z^2-6z-27=0 by factoring?

Respuesta :

Аноним Аноним

24-07-2015

z^2−6z−27=0

Factor left side of equation.

(z+3)(z−9)=0

Set factors equal to 0.

z+3=0 or z−9=0

z=−3 or z=9

Answer Link

Otras preguntas

"Mary Leapor's ""Crumble-Hall"" is a work of a-criticism b- commentary c- sątire d-gossip

Researchers showed racially ambiguous faces to White participants and had themidentify the faces as either Black or White. The study found that the faces weremo

Identify the "ultimate" and "direct" sources of an officer's authority.

Inco purchased a computer for $200,000 and this machine is expected to generate annual cash flows of $48,271 over the next 5 years. What is the expected rate of

Hola, alguien sabe cómo resolverla? Es sobre heterociclos de 5 miembros con 2 heteroatomos

Using terms like “secant line” and “tangent line”, explain how evaluating [tex]\lim_{h \to 0} =\frac{f(6+h) - f (6)}{h}[/tex] gives the value of the derivative

What is the significance of Mary Warren's change of heart at the end of the act?

I am blessed to have ______ parents with whom I can talk about any topic. 1) enlightened 2) open-minded

If you become sick, especially with flu symptoms or Covid-19 symptoms, how early in advance and when should you contact your manager? Call or Text?

When trying to make a message more concise________- a.remove adverbs that don't add to the meaningb.add shorter wordsc.examine every wordd.do both A and C