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3 years ago

Find the solutions to the equation below. Check all that apply. x2 - 4 = 0

Mathematics

2 answers:

Gennadij [26K]3 years ago

8 0

Answer:

Step-by-step explanation:

First you add 4 to both sides and get

2x=4

then you divide by 2 and get

4/2=x

4/2=2

x=2

Fantom [35]3 years ago

3 0

Answer:

+2 or -2

Step-by-step explanation:

move 4 after equal sign

now it's x² =4 and put a root on the two parts of equation and this is what you get

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A triangle is such that the largest angle is three times the smallest angle. Find the measure of each angle

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.. 3x > 180 -4x > x
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or
.. 36 > x > 180/7 = 25 5/7

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3 years ago

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forsale [732]

Answer:

Step-by-step explanation:

b= 3

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Hope this helps

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lapo4ka [179]

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Step-by-step explanation:

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3 years ago

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PLEASE HELP Which expression represents the difference quotient of the function f (x) = negative StartRoot 2 x EndRoot?

natali 33 [55]

Answer:

c is the correct option

Step-by-step explanation:

from,

f'(x) = h >0 f(x + h) - f(x)

f(x) = - √2x

f(x + h) = - √(2x + h)

f'(x) = h>0 -√(2x + h) - √2x

rationalize the denominator

= h>0 -√(2x + h) + √2x (-√(2x + h) - √2x)

h (-√(2x + h) - √2x)

= h>0 4x + 2h - 4x

h(-√(2x + h) -√2x)

= h>0 2h

h(-√(2x+h) - √2x)

= h>0  2 

-√(2x+h) - √2x

5 0

3 years ago

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