ТРЕНАЖЕР ПО ТЕМЕ «ФОРМУЛЫ СОКРАЩЕННОГО УМНОЖЕНИЯ» ( а + в )2 = а2 + 2ав + в2
( а - в )2 = а2 - 2ав + в2
1в 2в
1.( х + 1 )2 1. (6 – d )2
2. (а - 3 )2 2. ( 7 + g )2
3. (у + 3 )2 3. (8 – h )2
4. (в – 4 )2 4. (9 + k )2
5. (с + 5 )2 5.(10 – m )2
6. (t – 16 )2 6. (n + 11 )2
7. (17 + u )2 7.(p – 12)2
8. (18 – v )2 8. (q + 13 )2
9. (19 + w )2 9. (r – 14 )2
10. (20 – z )2 10. (s + 15 )2
11. (n + 11 )2 11. (n + 12 )2
12. (2x + y )2 12. (3x + y )2
13. (3a – b )2 13. (4a – b )2
14. (4c + 2 )2 14. (4c + 5 )2
15. (5d – 3 )2 15. (6d – 3 )2
16. (6h + 4 )2 16. (2h + 5 )2

1)(x+1)^2=x^2+2x+1 1)(6-d)^2=36-12d+d^2

2)(a-3)^2=a^2-6a+9 2)(7+g)^2=49+14g+g^2

3)(y+3)^2=y^2+6y+9 3)(8-h)^2=64-16h+h^2

4)(b-4)^2=b^-8b+16 4)(9+k)^2=81+18k+k^2

5)(c+5)^2=c^2+10c+25 5)(10-m)^2=100-20m+m^2

6)(t-16)^2=t^2-32t+256 6)(n+11)^2=n^2+22n+121

7)(17+u)^2=199+34u+u^2 7)(p-12)^2=p^2-24p+14

8)(18-v)^2=664-36v+v^2 8)(q+13)^2=q^2+26q+169

9)(19+w)^2=361+38w+w^2 9)(r-14)^2=r^2-28r+196

10)(20-z)^2=400-40z+z^2 10)(s+15)^2=s^2+30s+225

11)(n+11)^2=n^2+22n+121 11)(n+12)^2=n^2+24n+144

12)(2x+y)^2=2x^2+4xy+y^2 12)(3x+y)^2=3x^2+6xy+y^2

13)(3a-b)^2=3a^2-6ab+b^2 13)(4a-b)^2=4a^2-8ab+b^2

14)(4c+2)^2=4c^2+16c+4 14)(4c+5)^2=4c^2+40c+25

15)(5d-3)^2=5d^2-30d+9 15)(6d-3)^2=6d^2-36d+9

16)(6h+4)^2=6h^2+48h+8 16)(2h+5)^2=2h^2+20h+25