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3 years ago

What are the solution(s) of x squared minus 4 = 0? x = negative 4 or x = 4 x = negative 2 or x = 2 x = 2 x = 4

Mathematics

2 answers:

frosja888 [35]3 years ago

7 0

Answer:

Step-by-step explanation:

The expression is

x^2 - 4

This is a quadratic expression.

To find the solution, we will equate the the expression to zero. It becomes

x^2 - 4 = 0

Add 4 to the left hand side of the equation and the right hand side of the equation. It becomes.

x^2 - 4 + 4 = 0 + 4

x^2 = 4

Take square root of the right hand side of the equation and left hand side of the equation. It becomes

√x^2 = √4

x = ± 2

x = 2 or x = - 2

Pani-rosa [81]3 years ago

5 0

Answer:

Step-by-step explanation:

edg 2020

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Step-by-step explanation:

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3 years ago

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2 years ago

Devin won a tiny bouncy ball at the school carnival. The diameter of the ball is 1.25 inches. To the nearest hundredth of a squa

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Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

What is the height of the triangle?

Pavlova-9 [17]

Answer:

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Step-by-step explanation:

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As seen in the diagram, we have a right triangle where the:

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3 years ago