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PROSZE SZYBKO Z OBLICZENIAMI


a) (2x-7)^2 b) (10x+3)^2 c) (8x+y)^2 d) (7y-2x)^2


Odpowiedź :

Odpowiedź:

a) (2x-7)^2 = [tex]4x^{2}[/tex]-28x+49

b) (10x+3)^2 = [tex]100x^{2}[/tex]+60x+9

c) (8x+y)^2= [tex]64x^{2}[/tex]+16xy+[tex]y^{2}[/tex]

d) (7y-2x)^2= [tex]49y^{2}[/tex]-28xy+[tex]4x^{2}[/tex]