Question

:(:(:(
( ×3 + 3)2=

( ×3 - 3 ) 2=

(a3 - b2 )(a3 + b2)=

( 1 - 8 xy )•( 1 + 8 xy )
​

Answer 1

Respuesta:

( ×3 + 3)2=

=(x3+3)(x3+3)

=(x3)(x3)+(x3)(3)+(3)(x3)+(3)(3)

=x6+3x3+3x3+9

=x6+6x3+9

( ×3 - 3 ) 2=

=(x3+−3)(x3+−3)

=(x3)(x3)+(x3)(−3)+(−3)(x3)+(−3)(−3)

=x6−3x3−3x3+9

=x6−6x3+9

(a3 - b2 )(a3 + b2)=

=(a3+−b2)(a3+b2)

=(a3)(a3)+(a3)(b2)+(−b2)(a3)+(−b2)(b2)

=a6+a3b2−a3b2−b4

=a6−b4

( 1 - 8 xy )•( 1 + 8 xy )

=(1+−8xy)(1+8xy)

=(1)(1)+(1)(8xy)+(−8xy)(1)+(−8xy)(8xy)

=1+8xy−8xy−64x2y2

=−64x2y2+1

Explicación paso a paso: