Question

1. x²+4=0
2. x²-6x+1=0
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.

Answer 1

1) subtract 4 from both sides. Remember i=sqrt(-1)

Answer 2

2) use the quadratic formula

Answer 3

go to youtube and search for "Quadratic formula song". Learn it. Memorize it. Appriciate it!

Answer 4

thanks!

Answer 5

so, would it be x²=-4?

Answer 6

yes

Answer 7

x²-6x+1=0
+6 +6
x²+1=6
-1 -1
x²=5

is this correct?

Answer 8

you dropped an x there
x²+1=6x

Answer 9

just use the quadratic formula, it's much easier