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Blababa [14]
3 years ago
11

I'm not sure how to do these equations

Mathematics
1 answer:
Gennadij [26K]3 years ago
5 0
\frac{x^2+4x+3}{x^2-4x-21} =  \frac{(x+3)(x+1)}{(x+3)(x-7)}  =  \frac{x+1}{x-7}
\frac{x^2+10x+16}{x^2+13x+40} =  \frac{(x+8)(x+2)}{(x+8)(x+5)} =  \frac{x+2}{x+5}
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