Question

Productos notables
(x+y)²
(j+5)²
(3a+b)²
(4x²+2y)²
(2a+2b²)²
porfavor, es para hoy :c
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Answer 1

Respuesta:

$(x + y) ^{2} = (x)^{2} + 2(x)(y) + (y)^{2} = {x}^{2} + 2xy + {y}^{2} \\ \\ (j + 5)^{2} = (j)^{2} + 2(j)(5) + (5)^{2} = {j}^{2} + 10j + 25 \\ \\ (3a + b)^{2} = (3a)^{2} + 2(3a)(b) + (b)^{2} = 9a + 6ab + b^{2} \\ \\ (4 {x}^{2} + 2y)^{2} = (4 {x}^{2} ) ^{2} + 2(4 {x}^{2} )(2y) + (2y) ^{2} = 16 {x}^{4} + 16 {x}^{2}y + 4 {y}^{2} \\ \\ (2a + 2b^{2} )^{2} = (2a)^{2} + 2(2a)(2b^{2} ) + (2b^{2})^{2} = 4{a}^{2} + 8ab^{2} + 4b^{4}$