Mathematics: Ok, i think it’s wrong bc the one above is the same?

Mathematics

28.07.2021 14:09

130

403

Solved by an expert

Ok, i think it’s wrong bc the one above is the same?

Show Answers

allendm5166

4,7(97 marks)

it doesn't matter if it is the same, your answers don't always need to be different, don't sweat it; you are probably correct.

dakshshberry

4,4(82 marks)

$\large\boxed{B.\ x=\dfrac{5+\sqrt{21}}{2},\ C.\ x=\dfrac{5-\sqrt{21}}{2}}$

Step-by-step explanation:

$\text{Use the quadratic formula:}\\\\ax^2+bx+c=0\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\================================\\\\\text{We have}:\\\\x^2+1=5x\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\x^2-5x+1=0\\\\a=1,\ b=-5,\ c=1\\\\b^2-4ac=(-5)^2-4(1)(1)=25-4=21\\\\x=\dfrac{-(-5)\pm\sqrt{21}}{2(1)}=\dfrac{5\pm\sqrt{21}}{2}$

New questions by subject

A rectangle has a height of 5 inches and a area of 35 squared inches what is the...

A rectangle has a height of 5 inches and a area of 35 squared inches what is the length of the base of the rectangle? Please help I dont get it....

Mathematics

30.10.2020 11:34

Now watch me whip watch me nae nae now watch me whip, whip watch me nae nae...

Health

02.07.2021 13:44

Need help with test asap...

Mathematics

06.06.2021 04:27

С a + b a + b a + b a + b N Х х х х у what is the answer to this??...

Mathematics

11.12.2020 01:41

7(y – 8) + 24 = x(y – 6)...

Mathematics

28.02.2020 19:20

Explain how Napoleon was either the creator of his time or the creation of his...

Explain how Napoleon was either the creator of his time or the creation of his time. Use a paragraph format....

History

10.11.2022 09:53

. The organisms shown below live in or near bodies of water. Some are classified...

. The organisms shown below live in or near bodies of water. Some are classified as vertebrates and some as invertebrates. Which organism is classified...

Physics

27.11.2022 04:34

Point R is located at (-9,8) and point T is located at (-9,-7) on a coordinate...

Point R is located at (-9,8) and point T is located at (-9,-7) on a coordinate plane. What is the distance, in units, between points R and T? Enter the...

Mathematics

23.01.2022 07:27

Y=2x+3 is it direct variation inverse variation or neither...

Mathematics

01.03.2021 11:55

A theme park has a ride that is located in a sphere. The ride goes around the...

A theme park has a ride that is located in a sphere. The ride goes around the widest circle of the sphere which has a circumference of 558.92 yd. What...

Mathematics

13.04.2022 13:15

Find out answers to questions
from an AI-bot

Get full access

Answers

Themes

Ok, i think it’s wrong bc the one above is the same?

Popular Questions about the subject: Mathematics

New questions by subject

We expand our knowledge with many expert answers