Question

Calcula los siguientes productos:
(a)(a)=

(a)(b)=

(2b)(b)=

(a)(3b)=

(a)(a+c)=

(c)(a+c)=

(a)(2a+b)=

(a)(b+c)=

(2a2 ) (2a)=

(5x2 ) (x3 )=

(a+b)(a+b)=

Answer 1

HOLA...

Aplicamos la propiedad distributiva de la multiplicación:

$(a) (a) = {a}^{2} \\ (a) (b) = ab \\ (2b)(b) = 2 {b}^{2} \\ (a)(3b) = 3ab$

$(a)(a + c) = {a}^{2} + ac \\ (c)(a + c) = ac + {c}^{2} \\ (a)(2a + b) = 2 {a}^{2} + ab \\ (a)(b + c) = ab + ac$

$(2 {a}^{2})(2a) = 4 {a}^{3} \\ (5 {x}^{2} )( {x}^{3} ) = 5 {x}^{5} \\ (a + b)(a + b) = {a}^{2} + 2ab + {b}^{2}$