3 years ago

How many solutions are there to the equation below?

2 answers:

8 0

Hello there.
Happy Valentine's Day⸮❍◡❍?

<span>How many solutions are there to the equation below?
220 = 2x-12x

</span><span>A) 1</span>

NARA [144]3 years ago

6 0

There is only one solution and the solution is x=-22

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Answer:

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$\begin{gathered} x_{1,\: 2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \\ x1=\frac{-6+\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=-1 \\ x2=\frac{-6-\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=7 \end{gathered}$

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