X^8+8x^7+15x^6−9x^5−72x^4−135x^3+8x^2+64x+120
1 answer:
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Answer:
x = 32
Step-by-step explanation:
This is an equilateral triangle. This means the angles of the triangle are all equal. Since the sum of a triangle's angles is 180°, that means each angle will be 60°.