3 years ago

Solve the equation. (Find only the real solutions. Enter your answers as a comma-separated list.) x4 − 8x2 + 7 = 0

Mathematics

1 answer:

ryzh [129]3 years ago

5 0

Answer: x=0 or x= plus or minus 2

Step-by-step explanation:

g(x)=x^4-8x^2+7

Critical numbers are the numbers where the first derivative is zero

g'(x)=4x^3-16x+0

=4x^3-16x

g'(x)=0

Implies

4x^3-16x=0

4x(x^2-4)=0

4x=0 OR x^2-4=0

x=0 or x^2=4

x=0 or x= plus or minus 2

You might be interested in

How do you work out 3^2+2^3 indices

Bingel [31]

3^2 +2^3

9+2^3

9+8

Answer : 17

4 0

3 years ago

I WILL MARK BRAINLIEST :]

Maurinko [17]

Answer:

A. . A cheeseburger is $7.95 plus $1.00 for each additional topping.

Step-by-step explanation:

6 0

2 years ago

PLEASE HELP ILL GIVE BRAINLIESTTTT :)

Taya2010 [7]

Answer:

Yes, these triangles are congruent

∠E≅∠M

Step-by-step explanation:

Yes, these triangles are similar.

<em>Proof:</em>

Each side in LNM is $1\frac{2}{3}$ times longer than the sides in GFE

$30/18 = 1\frac{2}{3}$

$25/15=1\frac{2}{3}$

$20/12 = 1\frac{2}{3}$

According CPCTC (corresponding parts of congruent triangles are congruent), angle E is similar to angle M.

Hope this helps :)

Have a good day!

4 0

2 years ago

Which inequality is represented by this graph? <br>

erica [24]

Answer:

x > 4

Step-by-step explanation:

Because x is greater than 4

6 0

2 years ago

If 8a+7b+c=9 then what is -6c-48a-42b

kati45 [8]

Your answer would be 6

5 0

3 years ago