HELP PLEASE!!! Correct each of the following errors by circling the error, describing what is wrong, entering what should be there instead, and entering the correct answer.
1) (3x2)(-2x4) = 3(-2)x2•4 = 6x8
2) 4a2 • 3a5 = (4 + 3)a2 + 5 = 7a7
3) x6 • x • x3 = x6+3 = x9
4) 34 • 23 = 64+3