Question

1. Which of the following methods would be the easiest to use to solve 2x2 + 4x – 3 = 0?

factoring
isolating the x2 term and finding the square root of both sides
using the quadratic formula
all three methods would be easy and effective

2. Which of the following methods would be the easiest to use to solve x2 + 5x – 6 = 0?

factoring
isolating the x2 term and finding the square root of both sides
using the quadratic formula
all three methods would be easy and effective

Answer 1

@hero can you help me?

Answer 2

I think
isolating the x2 term and finding the square root of both sides

works if you have something like x^2 - 16 =0 (no "x" term)
but
\[ 2x^2 + 4x – 3 = 0\]
is more complicated than that (it has a 4x term)

Answer 3

1. If it's a trinomial in the form ax^2 + bx + c and factorable, then you would use factoring.

2. If the trinomial is not factorable, then you would use the the quadratic formula.

3. If it has the form x^2 - b^2 and both a and b are perfect squares, then you can isolate x^2

If you have a trinomial and b^2 - 4ac is a positive perfect square, then the trinomial is factorable.

Answer 4

@ hero is 1 is factoring

Answer 5

and 2 is??

Answer 6

I don't understand what you're asking