HAY QUE RECORDAR
[tex](A+B)^{2}[/tex]=[tex]A^{2} +2AB+B^{2}[/tex] [tex](A-B)^{2}[/tex]=[tex]A^{2} -2AB+B^{2}[/tex]
I) A=2X B=Y
[tex]A^{2} +2AB+B^{2}[/tex]
4[tex]x^{2}[/tex]+2(2X)(Y)+[tex]Y^{2}[/tex]
4[tex]x^{2}[/tex]+4XY+[tex]Y^{2}[/tex]
II) A=9XY B=2X
81[tex]x^{2} y^{2}[/tex]+2(9xy)(2x)+4[tex]x^{2}[/tex]
81[tex]x^{2} y^{2}[/tex]+36y[tex]x^{2}[/tex]+4[tex]x^{2}[/tex]
iii) A=2X B=[tex]y^{3}[/tex]
[tex]A^{2} -2AB+B^{2}[/tex]
4[tex]x^{2}[/tex]-2(2x)([tex]y^{3}[/tex])+[tex]y^{6}[/tex]
4[tex]x^{2}[/tex]-4x[tex]y^{3}[/tex]+[tex]y^{6}[/tex]
hay que recordar [tex](a + b + c)^{2}[/tex] = [tex]a^{2} + b^{2} + c^{2} + 2ab + 2bc + 2ca[/tex]
iv) [tex](a+3b+c^{2} )^{2}[/tex]
[tex]a^{2} + 3b^{2} + (c^{2}) ^{2} + 2a.3b + 2(3b)c^{2} + 2c^{2} a[/tex]
6ab+2a[tex]c^{2}[/tex]+[tex]a^{2}[/tex]+9[tex]b^{2}[/tex]+6b[tex]c^{2}[/tex]+[tex]c^{4}[/tex]
hay que recordar (x+y)(x-y)= [tex]x^{2} -y^{2}[/tex]
v) x=a y=4
[tex]x^{2} -y^{2}[/tex]
[tex]a^{2}-4^{2}[/tex]
[tex]a^{2}-16[/tex]
solo quiero mi corona para subir de rango porfa ;)
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HAY QUE RECORDAR
[tex](A+B)^{2}[/tex]=[tex]A^{2} +2AB+B^{2}[/tex] [tex](A-B)^{2}[/tex]=[tex]A^{2} -2AB+B^{2}[/tex]
I) A=2X B=Y
[tex]A^{2} +2AB+B^{2}[/tex]
4[tex]x^{2}[/tex]+2(2X)(Y)+[tex]Y^{2}[/tex]
4[tex]x^{2}[/tex]+4XY+[tex]Y^{2}[/tex]
II) A=9XY B=2X
[tex]A^{2} +2AB+B^{2}[/tex]
81[tex]x^{2} y^{2}[/tex]+2(9xy)(2x)+4[tex]x^{2}[/tex]
81[tex]x^{2} y^{2}[/tex]+36y[tex]x^{2}[/tex]+4[tex]x^{2}[/tex]
iii) A=2X B=[tex]y^{3}[/tex]
[tex]A^{2} -2AB+B^{2}[/tex]
4[tex]x^{2}[/tex]-2(2x)([tex]y^{3}[/tex])+[tex]y^{6}[/tex]
4[tex]x^{2}[/tex]-4x[tex]y^{3}[/tex]+[tex]y^{6}[/tex]
hay que recordar [tex](a + b + c)^{2}[/tex] = [tex]a^{2} + b^{2} + c^{2} + 2ab + 2bc + 2ca[/tex]
iv) [tex](a+3b+c^{2} )^{2}[/tex]
[tex]a^{2} + 3b^{2} + (c^{2}) ^{2} + 2a.3b + 2(3b)c^{2} + 2c^{2} a[/tex]
6ab+2a[tex]c^{2}[/tex]+[tex]a^{2}[/tex]+9[tex]b^{2}[/tex]+6b[tex]c^{2}[/tex]+[tex]c^{4}[/tex]
hay que recordar (x+y)(x-y)= [tex]x^{2} -y^{2}[/tex]
v) x=a y=4
[tex]x^{2} -y^{2}[/tex]
[tex]a^{2}-4^{2}[/tex]
[tex]a^{2}-16[/tex]
solo quiero mi corona para subir de rango porfa ;)