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Over [174]
3 years ago
13

Factor completely. x^3 - y^3

Mathematics
1 answer:
finlep [7]3 years ago
8 0
(x-y)(x^2+xy+y^2)

The first parentheses contain the cubed root of both the terms so x and y respectively. second parentheses follows the formula (a^2 + ab + b^2)
x corresponds to a and y corresponds to b. The signs are what change depending on what the original equation is. Since the original is a subtraction then the signs are -/+/+. you can remember it using the acronym SOAP. (S = same, O = opposite, AP = always positive) So the first sign is x - y (same as subtraction from original), the second and third are x^2 + xy + y^2 (opposite is a plus, and the last sign is always a positive.
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What is the image point of (1,-2)after a translation right 4 units and down 4 units?
den301095 [7]

By applying the concept of translation, we conclude that the <em>image</em> point of (1, - 2) is equal to the point (5, - 6).

<h3>What is the image of a point by rigid translations?</h3>

In this problem we have a point set in a <em>Cartesian</em> plane, which has to be translated to determine the coordinates of a <em>resulting</em> point. Translations are examples of <em>rigid</em> transformations, these are, transformations applied on <em>geometric</em> loci such that <em>Euclidean</em> distance is conserved.

Vectorially speaking, translations are modelled by the following formula:

P'(x, y) = P(x, y) + T(x, y)      (1)

Where:

  • P(x, y) - Original point
  • P'(x, y) - Resulting point
  • T(x, y) - Translation vector

If we know that P(x, y) = (1, - 2) and T(x, y) = (4, - 4), then the resulting point is:

P'(x, y) = (1, - 2) + (4, - 4)

P'(x, y) = (5, - 6)

By applying the concept of translation, we conclude that the <em>image</em> point of (1, - 2) is equal to the point (5, - 6).

To learn more on rigid transformations: brainly.com/question/1761538

#SPJ1

5 0
2 years ago
What is 4(x + 1) = 8.
Westkost [7]

\bf{4(x+1)=8}

Divide both sides by 4.

\bf{x+1=\dfrac{8}{4} }

Divide 8 by 4 to get 2.

\bf{x+1=2}

Subtract 1 from both sides.

\bf{x=2-1 }

Subtract 1 from 2 to get 1.

\bf{x=1 \ \ \to \ \ \ Answer}

<h2>Verification</h2>

Let x=1.

\bf{4\times(1+1)=8 \ \ \to \ \ \ [Add] }

\bf{4\times2=8 \ \ \to \ \ \ [Multiply]}

\bf{8=8 \ \ \to \ \ \ [Equality \ holds] }

Checked ✅

<h2>{ Pisces04 }</h2>
3 0
2 years ago
Read 2 more answers
Help please **attachment**
ss7ja [257]

Answer:

i think the answer is c but im not sure

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The answer choices are -3, 3/2, 3, and -12/5.<br> thanks in advance!! :)
BabaBlast [244]

Answer:

<em>(C). {3} </em>

Step-by-step explanation:

\frac{x}{2(x+1)} = \frac{-2x}{4(x+1)} + \frac{2x-3}{x+1} ( x ≠ - 1 )

\frac{x}{2(x+1)} - \frac{2x-3}{x+1} + \frac{x}{2(x+1)} = 0

\frac{2x-3}{x+1} - \frac{x}{(x+1)} = 0

\frac{x-3}{x+1} = 0 ⇒ <em>x = 3</em>

8 0
3 years ago
Help plsssssss homewrok do taday <br> -2x - 3y = 6
OlgaM077 [116]

Answer:

x=0/y=-2

y=0/x=-3

....∞

Step-by-step explanation:

6 0
3 years ago
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