nicolelorah365
nicolelorah365
11-11-2020
Mathematics
contestada
solve the equation
7x^2+21=0
Respuesta :
BangChan8
BangChan8
11-11-2020
Subtract 21 from both sides
7x^2=-21
Divide by seven on both sides
X^2=-3
Square root both sides
***X= square root of -3***
:)
Answer Link
VER TODAS LAS RESPUESTAS ( 77+ )
Otras preguntas
Llena el espacio la respuesta correcta. Santo Tomás es una iglesia famosa de y tiene dieciocho escalones.
PLS HELP ITS URGENT I HAVE LIKE A COUPLE QUESTIONS LEFT IM STUCK ON THIS
Which of the following is not a true bi-conditional statement? A. A quadrilateral is a square if and only if it has 4 congruent sides and 4 right angles. B. J
Writing Exercises 296. Which method do you prefer to use when multiplying two binomials: the Distributive Property, the FOIL method, or the Vertical Method? Why
the question is on the image
The great astronomer of ancient times who summarized and improved a system of circles upon circles to explain the complicated motions of the planets (and publis
Which of the following is the equivalent expression for (x + 2)(x - 2)? LIKE PLS HELP
A washer and a dryer cost 792 combined. The washer costs 92 more than the dryer. What is the cost of the dryer?
To conduct a survey on current social work majors, a researcher gets a list of all students who have declared a social work major from the registrar from which
here is the histogram of a data distribution. all class widths are 1. which of the following is the closest to the median of this distribution
