MAT 095 Lecture Notes - Lecture 25: Nth Root
Document Summary
Provide a generalization to each of the terms listed in this section. Radical expressions n a n : index or root a : radicand. : radical sign or radical py + 7 = 9. Checking solutions: proper solutions: if a solution does equal both sides of the equation, then it is a proper solution. 6x 8 = 13 + 8x (cid:0) 6x 8(cid:1) ) 8 = r 13 + 8( r6( r 30. Checking solutions: proper solution and no solution: if a solution does not equal both sides of the equation, then it is not a proper solution. 4r 4 (cid:0)r2 8r + 16(cid:1) = r2 8r + 16 (cid:0)r2 8r + 16(cid:1) 4r 4 = r 4 (cid:0) 4r 4(cid:1) Check : r = 2 p4(2) 4 + 4 = (2) 2 r = 10 p4(10) 4 + 4 = (10)
