Question

solve each equation. Write irrational numbers in simplest radical form. Describe the strategy you used to get your solution and tell why you chose that strategy.
1. x^2 + 4 = 0
2. x^2 - 6x + 1 = 0

Answer 1

Solve for x

Answer 2

@iambatman

Answer 3

1. using reverse FOIL:
(x+2)(x-2) = x^2 + 2x - 2x + 4
= x^2 + 4
so if
x^2 + 4 = 0
(x+2)(x-2) =0
so either x+2 = 0 or x - 2 = 0
if it's x+2 = 0... then x = -2
if it's x-2 = 0... then x = 2
so either x = 2 or x = -2

is this making sense?
can you do Q2?

Answer 4

i think so, thanks!

Answer 5

sweet ;)