/分(金) P25 閉1() ax-bz -2la-b) 3年の教 一教科書 - (2) 26+ab (3) az+a2 +2a = bl2b+a) = al242+2) ニ (2) 102'y +5x = 5x (279+) (3) -24 三29(g-2) (47486-6a6-10ab =2ab (2a-36-5) 閉2(1) 6mz-2nス = 22 (3m-n) P26 間11)で72+10 = (2+2)(2+5) (4) 22-9218 (3)だ+82+12 = (2+6)(2+2) (2)xンクェ+6 ニ Poク 関2(1) 2-22-15 (2)で-2x-8 = (2-4)(2+2) = (2+5)(2-2) = (4)a-7a-8 (at)(a8) (3) 2+32-10 問3(1)で+102+9 (2) ga53-36 (3)α'+1Pa+81 (2t1)(2+9) : : (4)2-22+1 (2-12 (4ー3)(y+9) (a+9)? (5) ダ-149449 (3-7 ) (6)22-16x+64 ニ P28間5(1) 236 = (2-6)(2-6) (3)21 (2-1)(2-1) 3(8)18-) (2) a-4 (4)16- = (a-2)(at2) = (たー1)(201) =(8m)8 門6 1) 2-32+2 212-2)(2-1) :(2-8)(2-8) (2)2-64 (3)ー4214 (4)22-52-24 (2-3)(28) (522+132+36 (29)(4) C62a+22a+121 (a+1111atl1)