What is the result of left parenthesis 8 x squared plus 7 x minus 2 right parenthesis minus left parenthesis x squared minus 3 x plus 1 right parenthesis? 8 x squared plus 4 x minus 1 7 x squared plus 4 x minus 3 7 x squared plus 10 x minus 1 7 x squared plus 10 x minus 3