Elena says "I can use the box method to rewrite `x^{2}+7x+10`  in factored form, but I cannot use the box method to rewrite  `x^{2}+8x+2\ `in factored form." 1.  Explain why Elena can factor `x^{2}+7x+10`, but not `x^{2}+8x+2`

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%