2 years ago

Please help me with range

Mathematics

2 answers:

ddd [48]2 years ago

5 0

I think its 2 I've done this before but I'm not so sure

Reptile [31]2 years ago

4 0

The number that belongs to the range is -1

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3 years ago

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3 years ago

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5 0

3 years ago

Help me please fast

Natalija [7]

Answer:

Step-by-step explanation:

$\frac{5}{x-3}+\frac{2}{x+1}=3 \\\\\frac{5(x+1)+2(x-3)}{(x-3)(x+1)} =3\\\\5x+5+2x-6=3(x-3)(x+1)\\\\7x-1=3(x^2+x-3x-3)\\\\7x-1=3(x^2-2x-3)\\\\7x-1=3x^2-6x-9\\\\0=3x^2-6x-7x-9+1\\0=3x^2-13x-8$

Hence proved!

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3 years ago

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2 years ago