Question

Giúp mình nha mọi người

Answer 1

x=71

nên x-1=70

\(H=x^5-70x^4-70x^3-70x^2-70x+29\)

\(=x^5-x^4\left(x-1\right)-x^3\left(x-1\right)-x^2\left(x-1\right)-x\left(x-1\right)+29\)

\(=x^5-x^5+x^4-x^4+x^3-x^3+x^2-x^2+x+29\)

=x+29

=100

Answer 2

\(H=x^5-70x^4-70x^3-70x^2-70x+29\)

\(=x^4\left(x-71\right)+x^3\left(x-71\right)+x^2\left(x-71\right)+x\left(x-71\right)+x+29\)

\(=x^4\left(71-71\right)+x^3\left(71-71\right)+x^2\left(71-71\right)+x\left(71-71\right)+71+29\)

\(=0+71+29=100\)

Answer 3

 

$H={}^{}-70{}^{}-70{}^{}-70{}^{}-70x+29$

$={}^{}\left(x-71\right)+{}^{}\left(x-71\right)+{}^{}\left(x-71\right)+x\left(x-71\right)+x+29$

$={}^{}\left(71-71\right)+{}^{}\left(71-71\right)+{}^{}\left(71-71\right)+x\left(71-71\right)+71+29$

$=0+71+29=100$