Algebra › Square roots

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Work backwards to find the number that was squared

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.

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https://schoolyourself.org/page/lti/sy/algebra/integer-roots

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