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komari0217
15.02.2021 •
Mathematics
Pls help me out lol. I’m desperate
Solved
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Ответ:
x=3
Step-by-step explanation:
x²+21x-72=0
(x-3)(x+24)=0
x=3 or x=-24(rejected)
∴x=3
Ответ:
7
Step-by-step explanation: