Question

a) x2 - 8x + 16 =
b) x2 - 14x + 49 =
c) x? - 26x + 169 =
d) x2 - 12x + 36
e) x2 + 18x + 81 =
1) x2 + 24x + 144
g) x² + 20x + 100
h) x2 + 16x + 64 =
Grado 8 matemáticas
alguien me puede ayudar porfavor​

Answer 1

Respuesta:

[tex]a)\\\\x^2 - 8x + 16\\\\(x - 4)(x - 4)\\\\x = 4\\\\x = 4[/tex]

[tex]b)\\\\x^2 - 14x + 49\\\\(x - 7)(x - 7)\\\\x =7\\\\x =7[/tex]

[tex]c)\\\\x^2 - 26x + 169\\\\(x - 13)(x - 13)\\\\x = 13\\\\x = 13[/tex]

[tex]d)\\\\x^2 - 12x + 36\\\\(x - 6)(x - 6)\\\\x =6\\\\x = 6[/tex]

[tex]e)\\\\x^2 + 18x + 81\\\\(x + 9)(x + 9)\\\\x = -9\\\\x = -9[/tex]

[tex]f)\\\\x^2 + 24x + 144\\\\(x + 12)(x + 12)\\\\x = -12\\\\x = -12[/tex]

[tex]g)\\\\x^2 + 20x + 100\\\\(x + 10)(x + 10)\\\\x = -10\\\\x = -10[/tex]

[tex]h)\\\\x^2 +16x + 64\\\\(x + 8)(x + 8)\\\\x = -8\\\\x = -8[/tex]

Explicación paso a paso: