September 2018 1 38 Report

1. Zastosuj wzory skróconego mnożenia:

a. (2-\sqrt{5})^{2}

b. (1+\sqrt{3})^{2}

c. (2-3\sqrt{2})^{2}

d.(1+\sqrt{7})^{2}

e. (3-2\sqrt{2})(3+2\sqrt{2})

f. (\sqrt{3}-3)(\sqrt{3}+3)

2. Zastosuj wzory skróconego mnożenia:

a. (x+y)^{2}-(x-y)^{2}

b.5(3-5a)^{2}-5(3a-7)(3a+7)


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