Jeff began deriving the quadratic formula...

Pls , the question is in the picture!

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

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%