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13 cards from this deck
Expression with √ that can't simplify to a whole number
Maintains exact values/precision without rounding errors
Numbers expressible as whole number squared (e.g. 4=224 = 2^24=22)
a×b\sqrt{a} \times \sqrt{b}a×b
222\sqrt{2}22
Only combine terms with same square root part
aaa
a2−ba^2 - ba2−b
Removing surds from denominator to make it rational
Multiply top and bottom by aa\frac{\sqrt{a}}{\sqrt{a}}aa
(a+b)(a + b)(a+b)
Multiply by conjugate (flip middle sign)
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