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Mamont248 [21]
3 years ago
8

Help I dunno what this is I need someone to walk me through it and give me the answer.

Mathematics
2 answers:
Dennis_Churaev [7]3 years ago
6 0

Answer:

-5

Step-by-step explanation:

The dot means multiply:  so 3 \cdot 2 = 3 \times 2 = 6

Also:  5² = 5 x 5 = 25

Therefore,

-6-4(3 \cdot 2)+5^2

\implies -6-4(6)+25

\implies -6-(4 \times 6)+25

\implies -6-24+25

\implies -5

leonid [27]3 years ago
4 0

- 6 - 4(3 \times 2) +  {5}^{2}

*Note:- The dot represents the multiplication symbol

\to - 6 - 4 \times 6 +  {5}^{2}

\to - 6 - 4 \times 6 + 25

\to- 6 - 24 + 25

\to - 30 + 25

\boxed{ \sf \: ans =  - 5}

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\mathrm{Simplify}\:12a^5-6a-10a^3-10a+2a^5+14a^4:\quad 14a^5+14a^4-10a^3-16a12a^5-6a-10a^3-10a+2a^5+14a^4\\Group\:like\:terms\\=12a^5+2a^5+14a^4-10a^3-6a-10a\\\mathrm{Add\:similar\:elements:}\:12a^5+2a^5=14a^5\\=14a^5+14a^4-10a^3-6a-10a\\\mathrm{Add\:similar\:elements:}\:-6a-10a=-16a\\=14a^5+14a^4-10a^3-16a

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