4bethany incorrectly simplified the following expression.
(4 x 10'')(3 x 10-14) + 0.5
which of bethany's steps show an error based solely on her previous step?
choose all that apply.
a step 1: (4 x 10'')(3 x 10-14) + (5 x 10-5
b step 2: (12 x 10-) + (5 x 10-5)
c step 3: (120 x 10-4) + (5 x 10-5)
(d) step 4: (120 x 10-4) + (50 x 10-4)
© step 5: 170 x 10-8
step 6: 1.7 x 10-6