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marissa [1.9K]
3 years ago
10

Only simplify please! thank tou

Mathematics
2 answers:
Troyanec [42]3 years ago
8 0

Answer:

10x + y - 6

Step-by-step explanation:

3(4x + 9) - 2(2y + 8) + 5y - 2x - 17

Distribute;

12x + 27 - 4y - 16 + 5y - 2x - 17

Collect like terms;

10x - 6 + y

natali 33 [55]3 years ago
3 0

Answer:

10x + y-6

Step-by-step explanation:

first expand n then collect the like terms n add

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For cos(2x) * (2cos(x) + 1) = 0, use the double angle identity for cos(2x), which is cos^2 x - sin^2 x = cos^2 x - (1-cos^2) = 2cos^2 x - 1.
So we have (2cos^2 x - 1)(2cos x + 1) = 0. So 2cos^2 x -1 = 0 or x = 0 and 2pi.
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5 0
3 years ago
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Answer:

6/8

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Step-by-step explanation:

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Answer:

x = -1

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