87² + 34² - 21² × 2 = ...
![]()
Penjelasan dengan langkah-langkah:
= 87² + 34² - 21² × 2
= 7.569 + 1.156 - 441 × 2
= 7.569 + 1.156 - 882
= 8.725 - 882
= 7.843
[tex]\color{purple}\overbrace{\underbrace{ \color{magenta} \{\purple{\star} \color{navy}\overline{ \underline{ \blue{\tt ϐׁׅ֒ɑׁׅ֮ꪀׁׅɑׁׅ֮ꪀׁׅɑׁׅ֮ }}} ~ \color{magenta} \purple{\star}\}}}[/tex]
Penjelasan dengan langkah-langkah:
87² + 34² - 21² × 2
= ( 87 × 87 ) + 34² - 21² × 2
= 7.559 + ( 34 × 34 ) - 21² × 2
= 7.559 + 1.156 - ( 21 × 21 ) × 2
= 7.559 + 1.156 - 441 × 2
= 7.559 + 1.156 - ( 441 × 2 )
= 7.559 + 1.156 - 882
= 8.725 - 882
= 7.843
[answer.2.content]
