Question

Complete com = ou ≠

A)√16+9_____√16+√9
B)√49+0_____√49+√0
C)√81-81_____√81-√81
D)√25-16_____√25-√16

Answer 1

Explicação passo-a-passo:

A) √16+9 ≠ √16 + √9

=> √16 + 9 = √25 = 5

=> √16 + √9 = 4 + 3 = 7

B) √49+0 = √49 + √0

=> √49 + 0 = √49 = 7

=> √49 + √0 = 7 + 0 = 7

C) √81-81 = √81 - √81

=> √81 - 81 = √0 = 0

=> √81 - √81 = 9 - 9 = 0

D) √25-16 ≠ √25 - √16

=> √25 - 16 = √9 = 3

=> √25 - √16 = 5 - 4 = 1