Question

Thực hiện phép tính:

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

Answer 1

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

=\(x^2.5x^3=x^2.\left(-x\right)+x^2.\left(-\dfrac{1}{2}\right)\)

=\(5x^5-x^3-\dfrac{1}{2}x^2\)

Học tốt nha!

Answer 2

\(x^2\times(5x^3-x-\dfrac{1}{2})\)

\(=x^2\times5x^3-x^2\times x-x^2\times\dfrac{1}{2}\)

\(=5x^5-x^3-\dfrac{1}{2}x^2\)