Algebra › Square roots of negatives

CCSS.MATH.CONTENT.8.EE.A.2
Use square root and cube root symbols to represent solutions to equations of the form x² = p and x³ = p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes. Know that √2 is irrational.

LTI launch URL (help)
https://schoolyourself.org/page/lti/sy/algebra/negative-roots