Use the identity below to complete the tasks: a3-b3=(a-b)(a2+an+b2)
When using the identity for the sum of two cubes to
factor 125q6-r6s3
Factor the expression (_q2-r2s)(_q4+_q2r2s+_r4s2)

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%