Question

(-2x³ ) (x²+5-1/2)

Answer 1

(-2x^3)(x^2+5-1/2)

=-2x^3*x^2-2x^3*9/2

=-2x^5-9x^3

Answer 2

\(\left(-2x^3\right)\left(x^2+5-\dfrac{1}{2}\right)\)

\(=\left(-2x^3\right)\left(x^2+\dfrac{9}{2}\right)\)

\(=\left(-2x^3\cdot x^2\right)+\left(-2x^3\cdot\dfrac{9}{2}\right)\)

\(=-2x^5-9x^3\)