Hasil daru √12×2y -√90:√5

Hasil daru √12×2y -√90:√5

2y $sqrt{2}$ – $sqrt{90}$ : $sqrt{5}$

= 2y $sqrt{2}$ – $sqrt{18\}$

= 2y $sqrt{2}$ – 3 $sqrt{2}$

= (2y-3) $sqrt{2}$

jika ingin nilai y

= 2y $sqrt{2}$ – 3 $sqrt{2}$

3 $sqrt{2}$ = 2y $sqrt{2}$ (pindah ruas)

$frac{3sqrt{2} }{2sqrt{2} }$ = y

y = $frac{3}{2}$