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

can i have step by step help

Question

Solve each equation, if possible. Write irrational numbers in simplest radical form. Describe the strategy you used to get your solution and tell why you chose that strategy.
a. x^2+4=0
b.x^2-6x+1=0

can i have step by step help

solomonzelman · Answer

you can already see that if you subtract 4 from both sides (in the first equation), you won't get any real solutions.

micahm · Answer

ok

solomonzelman · Answer

have you learned about imaginary number $\large\color{black}{i }$  (which is equivalent to $\large\color{black}{  \sqrt{-1}       }$ )    ?

micahm · Answer

ok

solomonzelman · Answer

is that a yes?

micahm · Answer

my teacher told me this 

Comments: You haven’t solved either equation. You want to take each part separately. If you would redo part B only and resubmit for grading to me. You will want to use the quadratic formula.

solomonzelman · Answer

i would complete the square for equation 2.

solomonzelman · Answer

$\large\color{black}{ x^2-6x+1=0}$ 
$\large\color{black}{ x^2-6x+1\color{red}{+8}=0\color{red}{+8}}$ 
$\large\color{black}{ x^2-6x+9=8}$ 
and on....

micahm · Answer

so A does not need to be solved at all

micahm · Answer

so the problem continue to the answer 8