Question

plantea una ecuación para cada problema y anotalo en la columna​

Answer 1

Respuesta:

a)

$x^2 + 11 = 92\\\\x^2 = 92 - 11\\\\x^2 = 81\\\\\sqrt{x^2} = \sqrt{81}\\\\x = 9$

b)

$x^2 - 15 = 106\\\\x^2 = 106 + 15\\\\x^2 = 121\\\\\sqrt{x^2} = \sqrt{121}\\\\x = 11$

c)

$x + x^2 = 182\\\\x^2 + x - 182 = 0\\\\(x + 14)(x - 13)\\\\x = -14\\\\x =13$

d)

$x^2 - x = 210\\\\x^2 - x - 210 = 0\\\\(x - 15)(x + 14)\\\\x = 15\\\\x = -14$

e)

$x^2 + 2x = 80\\\\x^2 + 2x - 80 = 0\\\\(x + 10)(x - 8)\\\\x = -10\\\\x = 8$

Explicación paso a paso:

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