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Katen [24]
3 years ago
9

Expand the polynomial (x2 − y2)2 + (2xy)2, then simplify it by combining like terms.

Mathematics
1 answer:
Vlada [557]3 years ago
8 0
<span><span>2<span>x^2</span></span>+<span><span>4x</span>y</span></span>−<span>2<span>y^<span>2
hope this helps</span></span></span>
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Which phrases can be represented by the algebraic expression x + 14? Select three options.
Snezhnost [94]

Answer:

a number plus 14

fourteen more than a number

a number increased by 14

Step-by-step explanation:

The phrases which can be represented by the algebraic expression x + 14 are

Let x = the unknown number

a number plus 14

= x + 14

fourteen more than a number

= x + 14

a number increased by 14

x + 14

4 0
3 years ago
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Please help with this, thank you!​
dezoksy [38]

Step-by-step explanation:

\sqrt{1.8 \times  \sin(46 ) \div 7.8 {}^{2}  }  - 50.8 \\  \sqrt{1.8}  \times 0.72  \div 60.84 - 50.8 \\   \sqrt{1.29 \div 10.04 }  \\  \sqrt{0.128 }  \\ 0.358

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3 years ago
John made a triangle with all three sides the same length, 1 \frac{2}{3} ft. What is the perimeter of the triangle?
UNO [17]

Answer:

5 ft

Step-by-step explanation:

If all sides are of the same length, we can multiply the value of one side by 3, because a triangle has three sides (and the perimeter is all sides added together), to find the perimeter.

1\frac{2}{3} × 3

1\frac{2}{3} can be rewritten as \frac{5}{3}, so:

\frac{5}{3} × \frac{3}{1}

= \frac{15}{3}

The numerator & denominator share a common factor of 3, so:

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7 0
2 years ago
Simplify: x(x-2)-3x(2x-1)
julsineya [31]

Answer:

-5x^2 +x

Step-by-step explanation:

x(x-2)-3x(2x-1)

Distribute

x^2 -2x -6x^2 +3x

Combine like terms

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4 0
3 years ago
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enot [183]

9514 1404 393

Answer:

  No

Step-by-step explanation:

The initial balance at the beginning of the year is not zero, so the balance is not proportional to the time since the beginning of the year.

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A proportional relationship always starts at zero when the independent variable is zero.

6 0
3 years ago
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