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15-09-2019
Mathematics

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Explain how you would solve this problem for x

Explain how you would solve this problem for x class=

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Аноним Аноним

15-09-2019

Answer:

x = 18.

Step-by-step explanation:

The 2 amgles are adjacent so add up to 180 degrees so we have:

x^2 - 11x + 3x = 180

x^2 - 8x - 180 = 0

(x -18)(x + 10) = 0

x = -10, 18.

x = -10 cannot be correct because that would make the 3x angle = -30.

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