a)x^2+4x+4=(x+2)^2 d)x^3+12x^2+48x+64=(x+4)^3
b)x^2-8x+16=(x-4)^2 e)x^3-6x+12x-8=(x-2)^3
c) (x+5)(x-5)=x^2-25 f) (x+2)(x^2-2x+4)=x^3+8
a) $x^2 + 4x + 4 = (x + 2)^2$
b) $x^2 - 8x + 16 = (x - 4)^2$
c) $(x + 5)(x - 5) = x^2 - 25$
d) $x^3 + 12x^2 + 48x + 64 = (x + 4)^3
e) $x^3 - 6x + 12x - 8 = (x - 2)^3$
f) $(x + 2)(x^2 - 2x + 4) = x^3 + 8$
\(x^2+4x+4=\left(x+2\right)^2\)
\(x^2-8x+16=\left(x-4\right)^2\)
\(\left(x+5\right)\left(x-5\right)=x^2-25\)
\(x^3+12x^2+48x+64=\left(x+4\right)^3\)
\(x^3-6x^2+12x-8=\left(x-2\right)^3\) (câu này chắc em ghi sai đề)
\(\left(x+2\right)\left(x^2-2x+4\right)=x^3+8\)