Mathematics: Solve the equation in the quadratic formula x^2-9x+14=0

Solve the equation in the quadratic formula x^2-9x+14=0

Ответ:

CrusaderLord

06.01.2022

$x^{2} -9x+14=0\\x= \frac{-b+- \sqrt{b^{2}-4ac}}{2a} \\x=\frac{-(-9)+- \sqrt{(-9)^{2}-4(1)(14)}}{2(1)}\\x=\frac{9+- \sqrt{81-56}}{2}\\x=\frac{9+- \sqrt{25}}{2}\\x=\frac{9+-5}{2}\\x=\frac{4, 14}{2}\\x=2, 7$

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Ответ:

RG1971

13.05.2021

Mathematics

0.3

Step-by-step explanation:

1.5/5.0= 0.3

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