Question

sxsxsxsxsxs

Answer 1

What grade?

Answer 2

Well whats your question then ill tell u :P

Answer 3

Y = x^2 + 6x - 20 is a parabola opening up.

It is in standard form, y = ax^2 + bx + c

A quick peek at the discriminant, b^2 - 4ac,

6^2 - 4(2)(- 20) = 36 + 160 = 196, lets us know it has two real roots.


To solve, factor using FOIL.

2x^2 + 6x - 20 = 0

All terms are multiples of two, so factor it out.

2(x^2 + 3 - 10) = 0

2(x + 5)(x - 2) = 0

x = - 5, x = 2

Answer 4

I'm in 7th grade :p.

Answer 5

lol.

Answer 6

whats your grade?

Answer 7

:p

Answer 8

Do you think this school gives to much work?

Answer 9

:P sometimes it feels like it to me...