Experimentos: medidas de masa y volumen
(2X+3y) ²= 4X ²+12xy+9y ² (c+d)^2=c^2+2cd+d² (x-c)^2=x^2-2cx+c^2
(m+1) ²= m ²+2m+1 (x-9)^2=x^2-18x+81
(8ax ²-1) ²= 64a ²x4-16a ²x4+1 …ver más…
(x-3)^2=x²-6x-9
(3a³ + 5ab)² = (3a³)² + 2(3a³) (5ab) + (5ab)² = 9a6 + 30 a4b + 25a²b² (a+12)^2=a^2+24a+144
(a + b)2 = a2 + 2ab + b2
BINOMIOS CONJUGADOS Ó DIFERENCIA DE CUADRADOS
(a)2= (a) (a) = a2 (10 x y2 +4x2z) (10 x y2 – 4x2z) =100x2 y4 –16x4 z2
- (b)2 = - (b) (b) = -b2 (3x - 2) • (3x + 2) = 9x2 − 4
(a + b) (a – b) = a2 – b2 (x + 5) • (x − 5) = x2 − 25
(5x – 3y) (5x + 3y)= (5x)2(3y)2 =25x2 – 9 y2 (3x - 2) • (3x + 2) = 9x4 − 4
(7 a2-3b2) (7 a2 +3b2) = (7 a2)2- (3b2)2 =49 a4 – 9b2 (3x - 5) • (3x - 5) = 9x 2 − 25
(10 x y2 +4x2z) (10 x y2 – 4x2z) =100x2 y4 –16x4 z2 (a+b) (a-b)= a2-b2
( x