Answer:
2 and 3i
Step-by-step explanation:
Let's find the answer to this problem using something called u-substitution. This means that we can replace x^2 with some variable u, and rewrite the equation:
[tex]u^2+5u-36=0[/tex]
Now this is a typical quadratic equation that you know how to solve:
[tex](u-4)(u+9)=0[/tex]
[tex]u=4,-9[/tex]
[tex]x^2=4,-9[/tex]
This problem has two roots, [tex]\sqrt{4}=2[/tex] and [tex]\sqrt{-9}=3i[/tex] (not sure if you guys are allowed to use imaginary numbers yet). Hope this helps!
