evaluate x2-3xy – z when x=-1 y=2 and z =-2 June 29, 2020/in Essay Help Online /by admin evaluate x2-3xy – z when x=-1 y=2 and z =-2 "Get 15% discount on your first 3 orders with us" Use the following coupon FIRST15 Order Now https://gradetutors.com/wp-content/uploads/2019/09/logo2.png 0 0 admin https://gradetutors.com/wp-content/uploads/2019/09/logo2.png admin2020-06-29 23:13:432020-06-29 23:13:43evaluate x2-3xy - z when x=-1 y=2 and z =-2