Question

M = (x + 7)2 + (x – 10)(x – 4)

Answer 1

Respuesta:

$m = 2 {x}^{2} + 89$

Explicación paso a paso:

${(x + 7)}^{2} + (x - 10)(x - 4) \\ {x}^{2} + 14x + 49 + ( {x}^{2} + ( - 10 - 4)x + ( - 10)( - 4) \\ {x}^{2} + 14x + 49 + {x}^{2} - 14x + 40 \\ 2 {x}^{2} + 89$

• UTILIZAMOS:

${(x + y)}^{2} = {x}^{2} + 2xy + {y}^{2}$

$(x + y)(x + w) = {x}^{2} + (y + w)x + (y)(w)$

Espero que te sirva ;)