Question

Combine these radicals.



–23
–11

Answer 1

I’m not sure how to read the expression you typed. Could you confirm which of these you meant?

1) −2√3 − √11
2) −√23 − √11
3) √(−23) − √(−11) (complex radicals)
4) something else — please retype with a √ or parentheses.

If you meant 1) or 2): those are unlike radicals (different radicands), so they cannot be combined; you can only factor a common sign:
-2√3 − √11 = −(2√3 + √11)
−√23 − √11 = −(√23 + √11)

If you meant 3): use i = √(−1):
√(−23) − √(−11) = i√23 − i√11 = i(√23 − √11)

Tell me which one you intended (or paste the expression with √), and I’ll give the final simplified form.