Question

1) Resolva as operações algébricas:
a)3² + 4¹ . 1³
b) - 81 + 32 + 7 - 15
c) ( - 2 ³ ) . ( 2² ) + 3²

Answer 1

a)
$3 {}^{2} + 4{}^{1} + 1{}^{3} \\ 9 + 4 \times 1 \\ 9 + 4 = 13$

b)-81+32+7-15
-96+39=-57

c)(+23)×(52)+32
-25+9
-32+9=-23