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Andreyy89
2 years ago
7

Please help me TwT Please and Thank you!

Mathematics
2 answers:
lions [1.4K]2 years ago
6 0

Answer:

C. None Of The Above

Step-by-step explanation:

Hope this helps

Llana [10]2 years ago
3 0

Answer:

Option C (None Of The Above)

Step-by-step explanation:

Given expression = -  (\frac{ - e}{ - f} )

Lets multiply the numerator and denominator by -1.

=  >  - ( \frac{ - e \times  - 1}{ - f \times  - 1} )

=  >  - ( \frac{e}{f} )

Now , lets open the brackets.

=  >  \frac{ - e}{f}

But as this expression is not there in the given options , the correct answer will be Option C.

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0.50 cent per ounces

Step-by-step explanation:

0.50 cent per ounces

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Factor the expression completely.<br> 625x4 - 256y4
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<u>Answer:</u>

<u>(625 • (x4)) -  28y4</u>

<u></u>

<u>  54x4 -  28y4 3.1      Factoring:  625x4-256y4  </u>

<u> </u>

<u>Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B) </u>

<u> </u>

<u>Proof :  (A+B) • (A-B) = </u>

<u>         A2 - AB + BA - B2 = </u>

<u>         A2 - AB + AB - B2 = </u>

<u>         A2 - B2Note :  AB = BA is the commutative property of multiplication. </u>

<u> </u>

<u>Note :  - AB + AB equals zero and is therefore eliminated from the expression. </u>

<u> </u>

<u>Check :  625  is the square of  25  </u>

<u>Check : 256 is the square of 16 </u>

<u>Check :  x4  is the square of  x2  </u>

<u> </u>

<u>Check :  y4  is the square of  y2  </u>

<u> </u>

<u>Factorization is :       (25x2 + 16y2)  •  (25x2 - 16y2)  3.2      Factoring:  25x2 - 16y2  </u>

<u> </u>

<u>Check :  25  is the square of  5  </u>

<u>Check : 16 is the square of 4 </u>

<u>Check :  x2  is the square of  x1  </u>

<u> </u>

<u>Check :  y2  is the square of  y1  </u>

<u> </u>

<u>Factorization is :       (5x + 4y)  •  (5x - 4y)this is the answer: (25x2 + 16y2) •(5x + 4y) • (5x - 4y)</u>

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