→ √64 × √81 + √225 = …​

√64 × √81 + √225

= 8 × √81 + √225

= 8 × 9 + √225

= 8 × 9 + 15

= 72 + 15

= 87

Jawaban:

√64 × √81 + √225

= √8² × √9² + √15²

= 8 × 9 + 15

= (8 × 9) + 15

= 72 + 15

= 87