by DaleCallahan | Oct 4, 2017 | Algebra, Algebra Chapter 3, Known Algebra Errors

Angela’s son brought this error in the Earth cover Algebra I Solutions Manual to our attention. Thank you! The problem (Ch3.4 #9) wording changed completely from the salamander cover to the Earth cover. However, the solution in the old and new solutions manuals...
by DaleCallahan | Sep 12, 2017 | Algebra, Algebra Chapter 1, Known Algebra Errors

In Jacob’s Elementary Algebra Chapter 1 Review Set I Question 14b page 51. “What is the total number of atoms in x propane molecules as a sum?” The Solutions Manual for Elementary Algebra on page 14 lists the answer as: b) 3x + 5x The “5”...
by DaleCallahan | Aug 29, 2017 | Algebra, Algebra Tests, Errors, Known Algebra Errors

Test shows: 3(x+1)^1/2=(x+7)^1/2 while the answer booklet shows: 3(x+1)^1/2=(x-7)^1/2. The answer key is correct. For the test, please change the problem to 3(x+1)^1/2=(x-7)^1/2