Expression 17: "a" "s" squared plus "b" "s" plus "c" equals "t"as2+bs+c=t
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Expression 18: "a" left parenthesis, StartFraction, negative "b" Over 2 "a" , EndFraction , right parenthesis squared plus "b" left parenthesis, StartFraction, negative "b" Over 2 "a" , EndFraction , right parenthesis plus "c" equals "t"a−b2a2+b−b2a+c=t
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Expression 19: StartFraction, "b" squared Over 4 "a" , EndFraction plus StartFraction, negative "b" squared Over 2 "a" , EndFraction plus "c" equals "t"b24a+−b22a+c=t
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Expression 20: StartFraction, "b" squared minus 2 "b" squared Over 4 "a" , EndFraction plus StartFraction, 4 "a" "c" Over 4 "a" , EndFraction equals "t"b2−2b24a+4ac4a=t
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Expression 21: StartFraction, "b" squared minus 2 "b" squared Over 4 "a" , EndFraction plus StartFraction, 4 "a" "c" Over 4 "a" , EndFractionb2−2b24a+4ac4a
equals=
negative 6.4 2 5−6.425
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Expression 22: StartFraction, negative left parenthesis, "b" squared minus 4 "a" "c" , right parenthesis Over 4 "a" , EndFraction equals "t"−b2−4ac4a=t
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Expression 23: "t" equals StartFraction, negative "d" Over 4 "a" , EndFractiont=−d4a
equals=
negative 6.4 2 5−6.425
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Expression 24: "d" equals "b" squared minus 4 "a" "c"d=b2−4ac
equals=
2.5 72.57
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Determination of x₁ and x₂
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Expression 26: "a" left parenthesis, "x" minus "s" , right parenthesis squared plus "t" equals 0ax−s2+t=0
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Expression 27: "a" left parenthesis, "x" minus StartFraction, negative "b" Over 2 "a" , EndFraction , right parenthesis squared plus StartFraction, negative "d" Over 4 "a" , EndFraction equals 0ax−−b2a2+−d4a=0
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Expression 28: left parenthesis, "x" plus StartFraction, "b" Over 2 "a" , EndFraction , right parenthesis squared equals StartFraction, "d" Over 4 "a" squared , EndFractionx+b2a2=d4a2
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Expression 29: "x" plus StartFraction, "b" Over 2 "a" , EndFraction equals StartFraction, StartRoot, "d" , EndRoot Over 2 "a" , EndFractionx+b2a=d2a
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Expression 30: "X" equals negative StartFraction, "b" plus left bracket, 1 , negative 1 , right bracket StartRoot, "d" , EndRoot Over 2 "a" , EndFractionX=−b+1,−1d2a
equals=
negative 6.5 1 5 6 0 9 7 7 0 9 4−6.51560977094
9.5 1 5 6 0 9 7 7 0 9 49.51560977094
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Expression 31: "x" Subscript, 1 , Baseline equals "X" left bracket, 1 , right bracketx1=X1
equals=
negative 6.5 1 5 6 0 9 7 7 0 9 4−6.51560977094
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Expression 32: "x" Subscript, 2 , Baseline equals "X" left bracket, 2 , right bracketx2=X2
equals=
9.5 1 5 6 0 9 7 7 0 9 49.51560977094
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Expression 33: "y" equals "a" left parenthesis, "x" minus "x" Subscript, 1 , Baseline , right parenthesis left parenthesis, "x" minus "x" Subscript, 2 , Baseline , right parenthesisy=ax−x1x−x2
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Punkter
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powered by
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Start black, ( "s" minus "h" ; "f" ( "s" minus "h" ) ) End black(s−h;f(s−h))
Start black, ( "s" plus "h" ; "f" ( "s" plus "h" ) ) End black(s+h;f(s+h))
"x" Subscript, 1 , Baseline equals negative 6.5 2x1=−6.52
