Question

2³ + 3( 1/9)⁰ - 2 ^-2nhân 4 + [(-2)²:1/2] nhân 8

 

Answer 1

\(2^3+3\cdot\left(\dfrac{1}{9}\right)^0-2^{-2}\cdot4+\left[\left(-2\right)^2:\dfrac{1}{2}\right]\cdot8\)

\(=8+3\cdot1-\dfrac{1}{4}\cdot4+\left(4:\dfrac{1}{2}\right)\cdot8\)

\(=8+3-\dfrac{4}{4}+4\cdot2\cdot8\)

\(=11-1+8\cdot8\)

\(=10+64\)

\(=74\)

Answer 2

\(=8+3-2^{-2}\cdot2^2+\left[4\cdot2\right]\cdot8\)

=11-1+8*8

=64+10=74

Answer 3

=8+3−2^(−2)⋅2^2+[4⋅2]⋅8=8+3−2−2⋅22+[4⋅2]⋅8

=11-1+8*8

=64+10=74