U'∪ (A-B) ∪(B-A)∪(C-A)∪(C-B)
express 6x -x^2 in the form m-(x-n)^2
U'∪ (A-B) ∪(B-A)∪(C-B)∪ (C-A)
divide 2.5 from 100
U'∪ (A-B) ∪(B-A)∪(C-(B∩A))
x:x+6:x+18 = 79 solve for x
U'∪ (A-B) ∪(B-A)∪(C-B) U (C-A)
x:x+6:x+18 solve for x
4p+5 over 2p - p+2 over 4p
