annab957 annab957

02-12-2019
Mathematics

contestada

x squared by 2 + 4x = -11

Respuesta :

Yang100 Yang100

02-12-2019

Answer:

x=-2+sqrt(7)*i, -2-sqrt(7)*i

Step-by-step explanation:

x^2+4x=-11

x^2+4x-(-11)=0

x^2+4x+11=0

Apply the quadratic formula with a=1, b=4 and c=11.

Answer Link

Otras preguntas

What lands did the British gain in the treaty of Paris?

12/5 rename the fractions as mixed numbers

here is a graph that represents a quadratic function. Which equation could define this function?

Which solution contains the biggest amount of chloride ions? I don’t understand why it’s B not D

what is Quantum mechanics explain in brief

The Civil War - The Gilded Age Review AnswersI just finished the test using answers I found on here and almost got 60% so I'll be posting the proper ones here.1

PLEASE HELP!!! 10 BRAINLY POINTS Solve the system of equation using substitution

Mr. Rosart selects two students from his class to present their book reports. He places the names of each student in a box and randomly picks one at a time. The

is it a noun or any thing else this word , please is the word representative is a noun or verb or adverb

Various systems in humans are involved in information processing. Which of the following correctly orders four of these systems from most to least foundational?