tolong jawab ya kak besok dikumpulin

1) √625 - ³√- 125
= 25 - (- 5)
= 25 + 5
= 30
b) ³√-27 × √64
= (-3) × 8
= (-24)
c) √64 ÷ ³√64
= 8 ÷ 4
= 2

2) 18² - √400
= 324 - 20
= 304
b) ³√-216 × (-5)²
= (- 6) × 25
= (-150)
c) 7² + (2 × √7)²
= 49 + (4 + 4√7 + 7)
= 60 + 4√7