√45 + √125 – 3√5 = bantu jawab​

√45 + √125 – 3√5 = 3√5 + 5√5 – 3√5 = 5√5

Jawaban:

√45 + √125 – 3√5

= √9 × 5 + √25 × 5 – 3√5

= 3√5 + 5√5 – 3√5

= 5√5