Alguien que me ayude con esto!
Binomios Conjugados!

a) (7-x)² + (9+x)³

b) (5+x)³ + (3+x) (3-x)

c) (8+x)² - (3-x)²

d) (-6+2x)²

e) (x+3) (x-3)

f) (x-9) (x+9) - (2x+3)²

Respuestas

Respuesta dada por: theonemota
0
-----------------------------------(a)------------------------------------------------
 (7-x)^{2} +  (9+x)^{3}
(49-14x+ x^{2} )+(729+243x+27 x^{2} + x^{3} )
778+229x+28 x^{2} + x^{3}
 x^{3} +28 x^{2} +229x+778


-------------------------(b)-----------------------------------------
 (5+x)^{2} +(3+x)(3-x)
(125+75x+15 x^{2} + x^{3} )+(9- x^{2} )
125+75x+15 x^{2} + x^{3} +9- x^{2}
134+75x+14 x^{2} + x^{3}
 x^{3} +14 x^{2} +75x+134


-------------------------(c)------------------------------
 (8+x)^{2} - (3-x)^{2}
(64+16x+ x^{2} )-(9-6x+ x^{2} )
64+16x+ x^{2} -9+6x- x^{2}
55+22x
22x+55


----------------------(d)----------------------------
 (-6+2x)^{2}
 (-6)^{2} +2(-6)(2x)+ (2x)^{2}
36-24x+4 x^{2}
4 x^{2} -24x+36


---------------------------------(e)--------------------------
(x+3)(x-3)= x^{2} - 3^{2} = x^{2} -9


----------------------------(f)---------------------------------------
(x-9)(x+9)- (2x+3)^{2}
( x^{2} -81)-(4 x^{2} +12x+9)
 x^{2} -81-4 x^{2} -12x-9
-3 x^{2} -12x-90

...Saludos...
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