Question

Calcule as expressões :
A)7.2²-2². 5=
B)√25.(√196-2³)
C)(2³.3²-6²)÷[18÷(15-3.2²)]²
D)2³.3√6.8+1

Answer 1

Vou só responder a questão A, B e D
A) 7.4-4.5= 28 -20=+8
B)5.14-8=
70-8= +62
D)8.3 +48 +1= 24 +49