jawab cepat 6 menit jngan ngasal
Jawab:
Penjelasan dengan langkah-langkah:
a)
[tex]\sf \sqrt{242} - \sqrt{450} =[/tex]
[tex]\sf = \sqrt{2 \times 121} - \sqrt{2\times 225}[/tex]
[tex]\sf = 11\sqrt2 - 15\sqrt2[/tex]
[tex]\sf = -4\sqrt 2[/tex]
b)
[tex]\sf (9\sqrt3 - 5\sqrt 5)\sqrt 5 =\\[/tex]
[tex]\sf = 9\sqrt {15} - 5(5)[/tex]
[tex]\sf = 9\sqrt {15} - 25[/tex]
Materi : Bentuk Akar dan Pangkat
√242 - √450
= √( 11² × 2 ) - √( 2 × 3² × 5² )
= (11)√2 - ( 3 × 5 )√2
= 11√2 - 15√2
= - 4√2
( 9√3 - 5√5 )√5
= 9√(3×5) - 5√(5²)
= 9√15 - 5(5)
= 9√15 - 25
Semoga bisa membantu
[tex] \boxed{ \colorbox{navy}{ \sf{ \color{lightblue}{ Answer\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
[answer.2.content]
