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ameliaxbowen7
05.10.2021 •
Mathematics
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Ответ:
x=9
Step-by-step explanation: Since the triangle appears to be isosceles, both base angles are congruent and the two bottom angles are 7x+2. According to the Exterior Angles Theorem (search it up if you don't know about it), 17x-23 (the exterior angle) must equal the sum of the two remote interior angles, or in this case 2(7x+2), so 17x-23=14x+4, and solving we get x=9.
Ответ:
-9ab3a3b-52
Step-by-step explanation:
-8a3b+3a2b2-52+5a2b3a3b+7-9a2b2
-8a3b-6a-52+5a2b3a3b
-14a3b-52+5a2b3a3b
-9ab3a3b-52