формула разности квадратов
1) (c+d)(c-d)
2) (a+c)(c-a)
3) (a-b)(-a-b)
4) (x+5)(x-5)
5) (a-4)(4+a)
6) (1+a)(1-a)
7) (2b+a)(2b-a)
8) (c+3d)(c-3d)
9) (4d-1)(1+4d)
- -
2 2
10) (c2+d2)(c2-d2)
11) (x4-y3)(y3+x4)
1) (c+d)(c-d)
2) (a+c)(c-a)
3) (a-b)(-a-b)
4) (x+5)(x-5)
5) (a-4)(4+a)
6) (1+a)(1-a)
7) (2b+a)(2b-a)
8) (c+3d)(c-3d)
9) (4d-1)(1+4d)
- -
2 2
10) (c2+d2)(c2-d2)
11) (x4-y3)(y3+x4)
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Answers & Comments
a^2-c^2
a^2-b^2
x^2-25
a^2-16
1-a^2
4b^2-a^2
c^2-9d^2
16d^2-1