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Folosind formulele de calcul prescurtat calculati:
(x+4)la a 2
(x+2)la a 2
(2x-3)la a 2
(x+radical2)la a 2


Răspuns :

a)[tex](x+4)^2=x^2+8x+16[/tex]
b)[tex](x+2)^2=x^2+4x+4[/tex]
c)[tex](2x-3)^2=4x^2-12x+9[/tex]
d)[tex](x+ \sqrt{2})^2=x^2+2 \sqrt{2}x+2[/tex]