starrxgirll starrxgirll

20-12-2020
Mathematics

contestada

Solve the quadratic equation: x^2+ 2x + 7 = 21

Respuesta :

goddessboi goddessboi

20-12-2020

Answer:

x1 = -4.872983346

x2 = 2.872983346

Step-by-step explanation:

Given:

x^2+2x+7=21

Subtract 21 on both sides to get the right side equal to 0:

x^2+2x-14=0

Use the quadratic formula:

x1 = -4.872983346

x2 = 2.872983346

Answer Link

Otras preguntas

what is the value of 3^3-(4)(2) ?

Find the measure of angle 2. degrees

the vertex of a parabola is (-1.5, -12.5), and its y-intercept is (0, -8).the x-intercepts of the parabola are -2,0 -4,0 2,0 4,0 and -1,0 2,0 1,0 -2,0

_____ is an instruction for a computer to perform a specific task.

Wayne needs to drive 470 miles to reach Milwaukee. Suppose he drives at a constant speed of 50 miles per hour. Which function represents Wayne's distance in mil

in the weakened state, the ottoman empire was known as the man of europe

mario invested $6,000 in an account that pays 5% annual interest compounded annually. using the formula a = p(1 r)t, what is the approximate value of the accoun

I just learned that Xenon does not react to nitrogen. What are some good early elements that nitrogen react to?

What is a primary when it comes to Presidential Election? PLEASE HELP I'M CONFUSED!?!

how many kilometers is to sun?