use the quadratic formula to solve the equation. round your solution to the nearest hundredth x^2+6x-10=0

Question

candy13106 · Answer

can u help me plz @Here_to_Help15

candy13106 · Answer

idk

candy13106 · Answer

ok idk how to do that i learned it the other way

candy13106 · Answer

ok imk so sorry

johnweldon1993 · Answer

Okay, so quadratic formula lol

$$\large \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$

candy13106 · Answer

watever idk need to do my homework

johnweldon1993 · Answer

The equation

x^2 + 6x - 10 = 0

We have

a = 1
b = 6
c = -10

So plug all those into the quadratic equation

$$\large \frac{-6 \pm \sqrt{6^2 - 4(1)(-10)}}{2(1)}$$

candy13106 · Answer

ok

johnweldon1993 · Answer

Simplify it a little bit

$$\large \frac{-6 \pm \sqrt{36 - (-40)}}{2}$$

candy13106 · Answer

ok

johnweldon1993 · Answer

$$\large \frac{-6 \pm \sqrt{76}}{2}$$

Soo now...what is the square root of 76?

candy13106 · Answer

8.7

johnweldon1993 · Answer

Okay, so we have

$$\large \frac{-6 \pm 8.717797887081348}{2}$$

*sorry just wrote it out lol

Now break that into 2 equations

$\large \frac{-6 + 8.717797887081348}{2}$      and      $\large \frac{-6 - 8.717797887081348}{2}$

solve those both and you're good :)

candy13106 · Answer

1.35 and -7.35 right?

johnweldon1993 · Answer

Perfect :)

candy13106 · Answer

that is right

johnweldon1993 · Answer

I checked the first one and it was right so I'll assume the second is as well :D

candy13106 · Answer

ok thanks