1.
=¹⁸√7² * ¹⁸√7 = ¹⁸√(7² * 7 : 7³) = ¹⁸√7⁰ = ¹⁸√1 = 1
¹⁸√7³
2. = 13+2√(13*7) +7 = 20 +2√91 = 2(10+√91) = 2
10+√91 10+√91 10+√91
3. = 5 * ⁶√9² * ⁶√9 = 5 * ⁶√(9² * 9) = 5 * ⁶√9³ = 5*√9 = 5*3 =15
4. =⁸⁴√3³ * ⁸⁴√3⁸⁴ * ⁸⁴√3⁴ = ⁸⁴√(3³ * 3⁸⁴ * 3⁴ : 3⁷) = ⁸⁴√3⁸⁴ = 3
⁸⁴√3⁷
5. = 12 ¹⁸√m² * ¹⁸√m = 12 * ¹⁸√(m² *m : m³) = 12* ¹⁸√1 = 12
¹⁸√m³
6. = |a-6| + |a-10| = a-6+(-(a-10)) = a-6 +(10-a)=a-6+10-a=4
7.= √81 * (√⁷√b) = 9 * (b^(¹/₇))^(¹/₂) = 9 * b^(¹/₁₄) = 9
¹⁴√b b^(¹/₁₄) b^(¹/₁₄)