[tex]g)\ b^2-36=b^2-6^2=(b-6)(b+6)\\\\h)\ 49-y^2=7^2-y^2=(7-y)(7+y)\\\\i)\ 4x^2-25y^2=(2x)^2-(5y)^2=(2x-5y)(2x+5y)\\\\j)\ m^2-16n^2=m^2-(4n)^2=(m-4n)(m+4n)\\\\k)\ a^2b^2-2=(ab)^2-(\sqrt2)^2=(ab-\sqrt2)(ab+\sqrt2)\\\\l)\ 9^2-x^4y^2=3^2-(x^2y)^2=(3-x^2y)(3+x^2y)[/tex]
Wzór:
[tex]a^2-b^2=(a-b)(a+b)[/tex]
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[tex]g)\ b^2-36=b^2-6^2=(b-6)(b+6)\\\\h)\ 49-y^2=7^2-y^2=(7-y)(7+y)\\\\i)\ 4x^2-25y^2=(2x)^2-(5y)^2=(2x-5y)(2x+5y)\\\\j)\ m^2-16n^2=m^2-(4n)^2=(m-4n)(m+4n)\\\\k)\ a^2b^2-2=(ab)^2-(\sqrt2)^2=(ab-\sqrt2)(ab+\sqrt2)\\\\l)\ 9^2-x^4y^2=3^2-(x^2y)^2=(3-x^2y)(3+x^2y)[/tex]
Wzór:
[tex]a^2-b^2=(a-b)(a+b)[/tex]