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Ivenika [448]
3 years ago
5

What are the solution(s) to the quadratic equation 9x^2=4?

Mathematics
1 answer:
Irina18 [472]3 years ago
8 0

Answer:

x = 2/3 or x = -2/3

Step-by-step explanation:

Solve for x over the real numbers:

9 x^2 = 4

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides by 9:

x^2 = 4/9

Hint: | Eliminate the exponent on the left-hand side.

Take the square root of both sides:

Answer:x = 2/3 or x = -2/3

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Common denominator
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2 years ago
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Factor this expression completely.<br><br> u^3 - v^3
Musya8 [376]

Completely factored form of u^3-v^3 is:

(u-v)(u^2+uv+v^2)

Step-by-step explanation:

Algebraic formulas are used to factorize the expression.

Given

u^3 - v^3

The formula involving cube with negative sign is:

a^3-b^3 = (a-b)(a^2+ab+b^2)

Using this formula:

u^3-v^3 = (u)^3 - (v)^3\\= (u-v)(u^2+uv+v^2)

Hence,

Completely factored form of u^3-v^3 is:

(u-v)(u^2+uv+v^2)

Keywords: Factorization

Learn more about factors at:

  • brainly.com/question/13063819
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7 0
2 years ago
What is the value of the expression |a + b| + |c| when a = –5, b = 8, and c = –13?
nasty-shy [4]
|a+b| + |c| when a= -5, b= 8, c= -13:

|-5+ 8|+ |-13|
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7 0
3 years ago
|4a|=20<br> PLEASE HELPPPPPPPPPP
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Answer:

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Step-by-step explanation:

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You are riding the swings at a fair. What are the coordinates of your location after a rotation of 180°?
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Answer:

(6, -3)

Step-by-step explanation:

The actual coordinates are x = -6 and y = 3

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And the final y-coordinate is - (3) = -3

So the coordinates will be (6, -3).

5 0
3 years ago
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