次の式を展開しなさい。
(1) (x+4)² = 7+82+16
(3) (a+7) a²+140+49
(2)(x+3)² +6x+9
(4) (a+4)² a²+80+16
(5) (a+10) a²+200+ 100
(6) (x+1)²= x²+2x+1
(7) (x+2)²²+4x+4
(9) (a +8) a²+16α+64
(11) (a-2)²=-40+4
(13) (x-4)x-84116
(15) (a-5)²²-100+25
2
(17) (x-5)²=
=-107+25
(8) (a+6)² = a²+120+36
(10)(5+z)=(x+53=x+10x+25
(12) (x-1)222-27+1
(14) (a-10) a²=-2001+100
(16) (x-8)²= x²-16x+64
101
(18) (a-9)² - a²-180 181
(19) (a-3)2-6α+9
(21) (3-a)²=9-6a+a²
(23) (6-a)² - 36-12a+a²
@(25) (2-x)²-4-4x+2²
2
(27) ( a − − 1 ) ²= a²= a + — —
(20) (a-6)²-a-120+36
(22) (−x+4)² = 7²-87+16
(24) (-x+1)² = 7-27+1
(26) (-a+7)²-149+49
-
(28)
( a − 1 )² = a² — — — a + 1½ ½
(29) x+
1\2
1
(301) (α-10)² à²-b² = 25)
a-