Question

ayudaaaaaaa! porfavor​

Answer 1

Respuesta:

$(x + 5) (x + 2) = x^{2} + 7x + \boxed{10}$

$(x + 7) (x + 4) = x^{2} + \boxed{11x} + 28$

$(x + 8) (x + 5) = x^{2} + \boxed{13x} + 40$

$(x + z) (x + 9) = x^{2} + (z + 9)x + \boxed{9z}$

$(x + y) (x + 2) = x^{2} + \boxed{y+2} x + 2y$

Saludos...