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MatroZZZ [7]
3 years ago
15

Simplify into one fraction. -1/x-9 - -2/x+7

Mathematics
2 answers:
Andrew [12]3 years ago
7 0

\bf -\cfrac{1}{x-9}-\cfrac{-2}{x+7}\implies -\cfrac{1}{x-9}+\cfrac{2}{x+7}\implies \cfrac{2}{x+7}-\cfrac{1}{x-9}\impliedby \stackrel{\textit{our LCD is}}{(x+7)(x-9)} \\\\\\ \cfrac{(x-9)2~~-~~(x+7)1}{(x+7)(x-9)}\implies \cfrac{2x-18~~-~~x-7}{(x+7)(x-9)}\implies \cfrac{x-25}{(x+7)(x-9)}

erica [24]3 years ago
5 0

Answer: I think c but I am not sure

Step-by-step explanation: Hope this helps

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4(x+3)-(2x-1)=30+7x-1+5x
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2. The total number of ski trails is 12. That's how many numbers there are in the box.

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Explore sums of complex
Charra [1.4K]

The two-point A and B will be -1+2i and -2+2i respectively.

<h3>What is the complex number?</h3>

A complex number is one that has both a real and an imaginary component, both of which are preceded by the letter I which stands for the square root of -1.

The complex number is given as;

x+iy

Where x is the real part and iy is the imaginary part.

The two points added to obtained -3 + 4i are;

A = -1+2i

B= -2+2i

The sum of the two points is;

⇒A+B;

⇒-1+2i + -2+2 i

⇒-3 + 4 i

Hence the two-point A and B will be -1+2i and -2+2i respectively.

To learn more about the complex number, refer to the link;

brainly.com/question/10251853

#SPJ1

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