Que valor tiene k para que las raices sean iguales
x2+kx+49=0
aszarhh:
Ayuda porfavor
Simplifying
x2 + kx + 49 = 0
Reorder the terms:
49 + kx + x2 = 0
Solving
49 + kx + x2 = 0
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '-49' to each side of the equation.
49 + kx + -49 + x2 = 0 + -49
Reorder the terms:
49 + -49 + kx + x2 = 0 + -49
Combine like terms: 49 + -49 = 0
0 + kx + x2 = 0 + -49
kx + x2 = 0 + -49
Combine like terms: 0 + -49 = -49
kx + x2 = -49
Add '-1x2' to each side of the equation.
kx + x2 + -1x2 = -49 + -1x2
x2 + kx + 49 = 0
Reorder the terms:
49 + kx + x2 = 0
Solving
49 + kx + x2 = 0
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '-49' to each side of the equation.
49 + kx + -49 + x2 = 0 + -49
Reorder the terms:
49 + -49 + kx + x2 = 0 + -49
Combine like terms: 49 + -49 = 0
0 + kx + x2 = 0 + -49
kx + x2 = 0 + -49
Combine like terms: 0 + -49 = -49
kx + x2 = -49
Add '-1x2' to each side of the equation.
kx + x2 + -1x2 = -49 + -1x2
Combine like terms: x2 + -1x2 = 0
kx + 0 = -49 + -1x2
kx = -49 + -1x2
Divide each side by 'x'.
k = -49x-1 + -1x
Simplifying
k = -49x-1 + -1x
kx + 0 = -49 + -1x2
kx = -49 + -1x2
Divide each side by 'x'.
k = -49x-1 + -1x
Simplifying
k = -49x-1 + -1x
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El valor de K es 14:)
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