EJERCICIOS resueltos

01
(x + 5)2
=
x2 + 10x + 25
02
(7a + b)2
=
49a2 + 14ab + b2
03
(4ab2 + 6xy3)2
=
16a2b4 + 48ab2xy3 + 36x 2y6
04
(xa+1 + yb-2)2
=
x2a+2 + 2xa+1yb-2 + y2b-4
05
(8 - a)2
=
64 - 16a + a2
06
(3x4 -5y2)2
=
9x8 - 30x4y2 + 25y4
07
(xa+1 - 4xa-2)2
=
x2a+2 - 8x2a-1 + 16x2a-4
08
(5a + 10b)(5a - 10b)
=
25a2 - 100b2
09
(7x2 - 12y3)(7x2 + 12y3)
=
49x4 - 144y6
10
(x + 4)3
=
x3 + 12x2 + 48x + 64
11
(5x + 2y)3
=
125x3 + 150x2y + 60xy2 + 8y3
12
(2x2y + 4m)3
=
18x6y3 + 48x4y2m + 96x2ym2 + 64m3
13
(1 - 4y)3
=
1 - 12y + 48y2 -64y3
14
(3a3 - 7xy4)3
=
27a9 - 189a6xy4 + 441a3x2y8 - 343x3y12
15
(2xa+4 - 8ya-1)3
=
8x3a+12 - 96x2a+8ya-1 + 384xa+4y3a-3 - 512y3a-3
16
(x + 5)(x + 3)
=
x2 + 8x + 15
17
(a + 9)(a - 6)
=
a2 + 3a - 54
18
(y - 12)(y - 7)
=
y2 - 19y + 84
19
(4x3 + 15)(4x3 + 5)
=
16x6 + 80x3 + 75
20
(5ya+1 + 4)(5ya+1 - 14)
=
25y2a+2 - 50ya+1 - 56