Question

\(4\cdot\left(-\frac{1}{2}\right)^{3}-2\cdot\left(-\frac{1}{2}\right)^{2}+3\cdot\left(-\frac{1}{2}\right)+1\)

Answer 1

\(4\cdot\left(-\dfrac{1}{2}\right)^3-2\cdot\left(-\dfrac{1}{2}\right)^2+3\cdot\left(-\dfrac{1}{2}\right)+1\)

\(=4\cdot\dfrac{-1}{8}-2\cdot\dfrac{1}{4}-\dfrac{3}{2}+1\)

\(=-\dfrac{1}{2}-\dfrac{1}{2}-\dfrac{1}{2}=-\dfrac{3}{2}\)