Question

If x*x + 2x - 35 = 0,
then x = ?

Answer 1

x^2 + 2x - 35 =0
a = 1
b= 2
c = -35

Use the quadratic formula for this,
\[x = \frac{ -b \pm \sqrt{b^2 - 4ac} }{ 2a }\]

Answer 2

Or by factoring
(X - 5)(x + 7)

Answer 3

Yes, that works as well, if you know how to factor, that is.