Expression 7: "f" left parenthesis, "x" , right parenthesis equals negative "x" to the 4th power plus 3 "x" cubed plus 4 "x" squared minus 12 "x" minus 2fx=−x4+3x3+4x2−12x−2
7
Expression 8: "g" ( "x" ) equals "x" to the 4th power minus 2 "x" cubed minus 3 "x" squared plus 8 "x" plus 9g(x)=x4−2x3−3x2+8x+9
8
Expression 9: "h" ( "x" ) equals negative 2 "x" to the 4th power plus 4 "x" cubed minus 8 "x" plus 10h(x)=−2x4+4x3−8x+10
9
Expression 10: "j" left parenthesis, "x" , right parenthesis equals 2 "x" to the 4th power minus 7 "x" squared minus 5 "x"jx=2x4−7x2−5x
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Expression 11: "f" ( "x" ) equals "x" to the 5th power plus 2 "x" to the 4th power minus 7 "x" cubed minus 8 "x" squared plus 12 "x" minus 1f(x)=x5+2x4−7x3−8x2+12x−1
11
Expression 12: "g" ( "x" ) equals negative "x" to the 5th power plus 2 "x" to the 4th power plus 5 "x" cubed minus 3 "x" squared minus 4 "x" plus 8g(x)=−x5+2x4+5x3−3x2−4x+8
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Expression 13: "h" ( "x" ) equals 2 "x" to the 5th power minus "x" to the 4th power plus 3 "x" cubed plus 5 "x" squared plus "x" minus 3h(x)=2x5−x4+3x3+5x2+x−3
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Expression 14: "j" ( "x" ) equals negative 2 "x" to the 5th power plus "x" cubed minus "x" squared plus 3 "x"j(x)=−2x5+x3−x2+3x