Question

how to solve 3w^2 + 22w + 7 = 0 ?

Answer 1

quadratic formula.

Answer 2

I have no idea what that is yet... sorry.

Answer 3

For \[ax^2 + bx + c\]
The quadratic formula is given by
\[\frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\]

Answer 4

\[x = \frac{ -b \pm \sqrt{b^2-4ac} }{ 2a}\]

Answer 5

yeah so a=3, b = 22, c = 7

Answer 6

Okay, so plug it in!

Answer 7

I have no idea how to even begin... My teacher had just thrown the work at us without teaching us or the quadratic formula..

Answer 8

Just to show that we could try to solve it on our own... but really im so confused. :/

Answer 9

\[\frac{ -22+\sqrt{(22^2)-4(3)(7)} }{ 2*3 }\]

Answer 10

its just a plug and chug with the equation.

Answer 11

okay thank you :) I'll see how it goes..

Answer 12

Good luck!