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exis [7]
3 years ago
5

Evaluate variable expressions

Mathematics
1 answer:
baherus [9]3 years ago
5 0
First multiply 5^2 =25+10•-2=25-20=5
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((r²+7r+10)/3) × (3r-30)/(r²-5r=50)
= Factoring the expression (r²+7r+10) we get  (r+2)(r+5)
Then multiply it with the other numerator, we get
= (r+2)(r+5)(3(r-10)
Then we factorise
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