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Tentukanlah hasil kali dari:  a.

Pertanyaan

Tentukanlah hasil kali dari: 

a. left parenthesis x squared minus x y plus y squared right parenthesis open parentheses x plus y close parentheses 

Pembahasan Soal:

Ingat!

Sifat bilangan berpangkat:

  • a to the power of m cross times a to the power of n equals a to the power of m plus n end exponent 

Maka: 

table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell left parenthesis x squared minus x y plus y squared right parenthesis left parenthesis x plus y right parenthesis end cell row blank equals cell x squared open parentheses x plus y close parentheses minus x y open parentheses x plus y close parentheses plus y squared open parentheses x plus y close parentheses end cell row blank equals cell x squared. x plus x squared. y minus x y. x minus x y. y plus y squared. x plus y squared. y end cell row blank equals cell x to the power of 2 plus 1 end exponent plus x squared y minus x to the power of 1 plus 1 end exponent. y minus x. y to the power of 1 plus 1 end exponent plus x y squared plus y to the power of 2 plus 1 end exponent end cell row blank equals cell x cubed plus up diagonal strike x squared y end strike minus up diagonal strike x squared y end strike minus up diagonal strike x y squared end strike plus up diagonal strike x y squared end strike plus y cubed end cell row blank equals cell x cubed plus y cubed end cell end table 


Jadi, hasil kali dari left parenthesis x squared minus x y plus y squared right parenthesis open parentheses x plus y close parentheses adalah x cubed plus y cubed.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 19 Juli 2021

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