次の式を展開しなさい。
(1)(z+3)(y +1) g#+な3のる
(16)(5-z)? - 25-10242
(2)(a+2Xb-3) = ab-3Ar2b-6
(17)(z+5Xz-5) =ビ-25
(3)(z-6Xy+5) =z8+5x-68-30
(18)(z-9Xz+9) -g2-81
3-018X1+ (6)
(4)(a-8Xb-4) = ab-fa-8b+32
(19)(4-z(4+z) =16-22
(5)(a+1X2a +1) = 2ポ434+ 1
(20) (22 +3(2z-5) - 42-30X -15
(6)(2z+3Xz-6) - 27-9x-18
(21) (5z-3g)°=252-302¥+9g
(7)(3z-5X2/+3) - 624+2-104-15
(8)(z+5(z+1) =2+ 62+5
(22)(6z-79X62+7g) - 36ズー998
(9)(z+3)(z+4) =ベ472+12
(23)(a+b+3Xa+b-3)
(10)(z+1)z-4) - 2-32-4
こどてab-38+ab+636+税+36-9
(11)(z-9Xz+5)。ベー4x-45
(24)(a-b+2)° --ab42a-4b+15-26 +24-2b+4
(12)(2-3(z-5) =2ー 8x+15
- -2ab+ドチa-46+4
(13)(z+2)°, 42+4
(25)(x-y-3)?ズーズ-28-ズ等3432
2e-28の の6年+9
(14)(z+7)°* 142+49
『15)(でー
-3)2--68+ 9