Question

1- RESOVA AS ESPRESSÕES

a) 15÷√25-×√36+4÷√16-1=
b) 10×(-1)⁴+3⁰-20-80÷(-4)²=
c) (-40)÷(-8)+(-64)÷8=

ME AJUDA PFVR <3

Answer 1

a) 15÷√25×√36+4÷√16-1=

15 ÷ 5 × 6 + 4 ÷ 4 - 1
3 × 6 + 1 - 1
18

b) 10×(-1)⁴+3⁰-20-80÷(-4)²=

10 × 1 + 1 -20 - 80 ÷ 16
10 -19 -5
10 -24
-14


c) (-40)÷(-8)+(-64)÷8=

5 + (-8)
5 - 8
-3