√162-2√98+√72 Pliss kakak bantuin

Perhatian : V dibaca Akar !


V162 - 2V98 + V72
=> V9.9.2 - 2V49.2 + V9.4.2
=> 3.3 V2 - 2.7V2 + 3.2V2
=> 9V2 - 14V2 + 6V2
=>V2

√162 - 2√98 + √72
= √81√2 - 2√49√2 + √36√2
= 9√2 - 2 . 7√2 + 6√2
= 9√2 - 14√2 + 6√2
= (9 - 14 + 6)√2
= √2