Mathematics: What is the answer? x^2 + 4x - 6 = 0

What is the answer? x^2 + 4x - 6 = 0 - id24602759369, oliviablue7535

Ответ:

anabellabenzaquen

04.01.2022

First we have to find $\Delta$ from the equation $b^{2} -4ac$ where a, b and c are consecutive coefficients of the equation. In this case: a=1, b=4, c=-6

$\Delta =4^2-4*(-6)=16+24=40$ ,

Later we will need to use $\sqrt{\Delta}$ sofor us $\sqrt{40}$ . It can be then simplified to $2 \sqrt{10}$ .

Then we use quadratic formula $x=\frac{-b\pm \sqrt{\Delta} }{2a}$ to see what are the options for x.

$x=\frac{-4\pm 2\sqrt{10}}{2}$
$x=- 2 \pm \sqrt{10}$

The answer for your question:
$x=- 2 + \sqrt{10}$ or $x=- 2 - \sqrt{10}$

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Ответ:

goforthmusic235

21.11.2021

Mathematics

Based on what I know I would assume 15. However I would try and find a better answer (Also tell your teacher it's called Mushroom Kingdom not Mario Land)

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What is the answer?
x^2 + 4x - 6 = 0

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