Question

me ayudan a resolver esto

a) x² + 18x + 81 =

b) x² + 24x + 144 =

c) x² + 20x + 100 =

d) x² + 16x + 64 =
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Answer 1

Respuesta:

$a). \: {x}^{2} + 18x + 81 \\ {x}^{2} + 2 \times x \times 9 + 81 \\ {x}^{2} + 2 \times x \times 9 + {9}^{2} \\ (x + 9 {)}^{2}$

$b). \: {x}^{2} + 24x + 144 \\ {x}^{2} + 2 \times x \times 12 + 144 \\ {x}^{2} + 2 \times x \times 12 + {12}^{2} \\ (x + 12 {)}^{2}$

$c). \: {x}^{2} + 20x + 100 \\ {x}^{2} + 2 \times x \times 10 + 100 \\ {x}^{2} + 2 \times x \times 10 + {10}^{2} \\ (x + 10 {)}^{2}$

$d). \: {x}^{2} + 16x + 64 \\ {x}^{2} + 2 \times x \times 8 + 64 \\ {x}^{2} + 2 \times x \times 8 + {8}^{2} \\ (x + 8 {)}^{2}$