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3 years ago

Enter the correct answer in the box

Mathematics

2 answers:

kakasveta [241]3 years ago

8 0

Answer:

Step-by-step explanation:

Invert and multiply the second fraction.

$\frac{x^2 - 2x}{x^2 - 10x + 25} *\frac{x^2 - 25}{6x^2 - 12x}$

All 4 parts of the two fractions can be factored into simpler factors.

$\frac{x(x - 2)}{(x - 5)(x - 5)} * \frac{(x + 5)(x - 5)}{6(x - 2)}$

Numerous cancelations can occur

(x - 5) [top right with x - 5 bottom left]
(x - 2) [top left with x - 2 bottom right]

Answer

$\frac{x}{(x -5)} * \frac{(x + 5)}{6}$

Kay [80]3 years ago

8 0

I got it right thanks :)

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Plz i need help and plz explain

Montano1993 [528]

$\frac{ {x}^{2} - 7x + 12}{ {x}^{2} - x - 12 } \\ = \frac{ {x}^{2} - 4x - 3x + 12 }{ {x}^{2} - 4x + 3x - 12 } \\ = \frac{x(x - 4) - 3(x - 4)}{x(x - 4) + 3(x - 4)} \\ = \frac{(x - 3)(x - 4)}{(x + 3)(x - 4)} \\ = \frac{x - 3}{x + 3}$

x² - x - 12 ≠ 0

x² - 4x + 3x - 12 ≠ 0

x (x - 4) + 3 (x - 4) ≠ 0

(x + 3)(x - 4) ≠ 0

x ≠ -3 or x ≠ 4

(B)

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3 years ago

Don't really understand how to solve please help <3

valina [46]

This is how the first one would be done. sorry if it’s a little messy the answer is 9. but try using photomath for the rest. it gives you the answer and explains how to do it

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3 years ago

Please help thanks <br> a(n)=−6+3(n−1)

erica [24]

Answer:

a=-1

Step-by-step explanation:

a(n) = -6+3(n-1)

a(n) = -6+3n-3

a(n) -n=-6+3n-n-3

a=-6+3-3

+3 +3

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---- ----

3 3

a=-1

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3 years ago

What is the greatest common factor of 84 and 210

Arlecino [84]

Answer:

42 is your answer!

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3 years ago

4(2k-3)+1=8k-11 help pls

Fofino [41]

4(2k - 3) + 1 = 8k - 11
8k - 12 + 1 = 8k - 11
8k - 11 = 8k - 11

So, these two equations equal to the same thing.
Glad I could help and gave a fantastic day!

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3 years ago