Question

What are the solutions of 5x2 + 2x – 8 = 0?

Answer 1

Which method would you prefer

- Breaking the middle term

- Using quad formula

Answer 2

Quadratic

Answer 3

I'd like to see you break the middle term

Answer 4

I don't know how to do that.?

Answer 5

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

Where,

a=5

b=2

c=-8

Answer 6

What about breaking the mid-term?

Answer 7

@Hero Sure.But @j.doe343 wants quad equation.

Answer 8

x = -2 +/- 2^2 - 4(5)(-8) / 2(5)

Answer 9

so then -2 +/- 4 + 160 / 10?