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

Which one is an accurate description of the process of erosion? A. breaking rocks into smaller pieces B. forming rocks and depositing them in new places C.

What Are verbs and what does it mean

What type of digestion involves the physical tearing and breaking apart of food? A)mechanical B)chemical

Lana is using a can opener to open a can of soup. Every time she twists the knob of can opener the can opens 36 degrees. How many times does Lana have to twist

brinns rectangular kitchen has an area of 81 square feet. the kitchen is 9 times as many square feet as brinns pantry. if the rectangular pantry is 3 feet wide,

the goals of the Founding Fathers for the new government, under the U.S. Constitution, are contained in the _________.

chapter 2 health test

Why do people live in the Sahel?

Native born citizens make up 90% of the u.s. population. true false

What does glasnost mean? a. stubborn b. openness c. restricted d. hopeful user: which of the following is believed to have played a role in the collapse of