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SCORPION-xisa [38]
3 years ago
15

Expand the following algebraic expression (n + 5) (n + 3)

Mathematics
2 answers:
marshall27 [118]3 years ago
6 0

{n}^{2}  + 30n + 15
Mamont248 [21]3 years ago
5 0

Answer:

n²+8n+15

Step-by-step explanation:

Given expression is (n+5)(n+3).

We have to expand it.

(n+5)(n+3)

Each of the two terms in first binomial is multiplied by the second binomial.

n(n+3)+5(n+3)

Each of the two terms in first binomial is multiplied by the each term of second binomial.

n(n)+n(3)+5(n)+5(3)

simplify

n²+3n+5n+15

add like terms

n²+n(3+5)+15

n²+n(8)+15

n²+8n+15 which is the answer.


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adoni [48]

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no it's an acute triangle

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why? because any angle below 90 degrees is considered an acute triangle which in your case 20,24, and 36 are all very far from being a right triangle

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