greyhhun greyhhun

12-08-2018
Mathematics

contestada

Find the number of real number solutions for the equation. x2 + 9x + 20 = 0

Respuesta :

konrad509 konrad509

12-08-2018

[tex] x^2 + 9x + 20 = 0 \\
x^2+4x+5x+20=0\\
x(x+4)+5(x+4)=0\\
(x+5)(x+4)=0\\
x=-5 \vee x=-4
[/tex]

Answer Link

Otras preguntas

Ms. Graves gave her class 12 minutes to read. Carrie read 5 1/2 pages in that time. at what rate, in n pages per hour, did Carrie read?

Which best explains how the excerpt is an example of realism?

Is Japan an archipelago in the western Pacific Ocean?

What is 3/5 of 7 kg ?

Discuss the systems view of life .

if you purchase $5000 in yarn what would the value be in 5 years

Determine the volume in liters occupied by 14g of nitrogen gas STP

Today Steve is carrying his history textbook and his lunch in his backpack. If the history textbook weighs 3/8 of a pound and his lunch weighs 3/4 of a pound, h

Increasing desertification and drought in Africa would have the GREATEST likelihood of A) causing civil wars. B) resulting in starvation. C) causing an in

Which strategy did companies use to stop strikes from growing?