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2 years ago

What are the solution(s) to the quadratic equation x2 – 25 = 0?

2 answers:

8 0

X^2 - 25 = 0
Add both sides by 25
x^2 = 25
Take the positive and negative square root.

x = 5
OR
x = -5

Have an awesome day! :)

Amiraneli [1.4K]2 years ago

4 0

Answer:

there are two solutions are x = (+5) and x = (-5)

Step-by-step explanation:

The given quadratic equation is x² - 25 = 0

Now we can get the solutions of this equation by zero factors.

[ since (a² - b²) = ( a-b ) ( a+b ) ]

so x² - 25 = (x-5) (x+5)

( x-5 ) = 0 ⇒ x = 5

or x + 5 = 0 ⇒ x = -5

Therefore, there are two solutions are x = (+5) and x = (-5)

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2 years ago

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2 years ago

The value of a $3000 computer decreases about 30% each year. write a function for the computers value V(t)

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Answer:

Function for given situation is : $V(t)=3000(0.70)^t$

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Step-by-step explanation:

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It clearly says that value decreases so that means function represents decay.

For decay we use formula:

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Step-by-step explanation:

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