bernardowais bernardowais
  • 22-06-2019
  • Mathematics
contestada

Use the intersect method to solve: x^2+1=-x^2+9

Respuesta :

Mathhisfunn101
Mathhisfunn101 Mathhisfunn101
  • 22-06-2019

Answer:

x={-2,2}

Step-by-step explanation:

Graph them when intersecting.

Algebraically:

x^2 + 1 = -x^2 + 9

Add x^2 on both sides and subtract 1 on both sides.

2x^2 = 8

Divide 2 on both sides

x^2 = 4

Square root on both sides

|x| = 2

Remove abs value by putting + or - on the other side

x = {-2,2}

Please mark for Brainliest!!  :D Thanks!!

For more information or any questions, please comment below and I'll respond as soon as possible!! :)

Answer Link
chrystianvalles45
chrystianvalles45 chrystianvalles45
  • 03-06-2021

2,2

B in edge

I am taking the test

Answer Link

Otras preguntas

How do you use helio and cookie in a sentence? It sounds weird but please help me.
A swimmer swims 1000 m in the pool in 8.6 minutes. What was the average speed of the swimmer in m/s?
transcendentalist,authors,and writer emphasized two main ideas in their work,What were those ideas?
what problems have resulted from the dramatic increase population over the last 100 years?
⦁ Explain how this scenario is a controlled experiment and identify the manipulated variable.
What's 64 divided by 0.4
Name of the people who got the title of SIR
The sum of two numbers is 27 . One number is 2 times as large as the other. What are the numbers?
What is nearest tenth of 20.25?
What do all flexible objects have in common?