Oblicz:
1.(3+x)²=
2.(x-7)²=
3.(5-7x)²=
4.(8-2x)(8+2x)=
5.(8x+2y)²=
6.(7x-9y)²=
7.(10x-12y)(10x+12y)=
Proszę o obliczenia
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kozystasz ze wzorow (a+b)^2= a^2+2ab+b^2 (a-b)^2= a^2-2ab+b^2
(a-b)(a+b)=a^2-b^2
1. 9+6x+x^2
2. x^2-14x+49
3. 25-70x+49x^2
4. 64-4x^2
5. 64x^2+32xy+4y^2
6. 49x^2-126xy+81y^2
7. 100x^2-144y^2
jak coś nie wiesz to pisz :D