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x²-10x=-3
x²-10x+3=0
Ya que no se puede factorizar utilizamos formula: x₁,₂= -b⁺/⁻√b²-4ac
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2a
En donde :
x²-10x+3=0
a=1
b=-10
c=3
Remplazas :
x₁,₂= -(-10)⁺/⁻√-10²-4(1)(3)
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2(1)
x₁,₂=10⁺/⁻√88
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2
x₁,₂= 10⁺/⁻2√22
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2
Sacamos mitad
x₁,₂=5+/- √22
Rpta: x₁=5+√22
x₂=5-√22