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29.10.2020 •
Mathematics
10x^2 - 6 = 9x ? using quadratic equation
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Ответ:
15
Step-by-step explanation:
For this equation, you have to use PEMDAS, P - Please, E - Excuse, M - My, D - Dear, A - Aunt, S - Sally. 10^2 = 100. 100x - 6 = 9x. Minus 9 on both sides. The two 9s cancels out. 100 - 9 = 91x = 6. Divide 91 on both sides. The two 91s cancels out. 91/6 is 15.
Ответ: