Question

Verify that 2 is zero of x cube minus 4 x square + 5 x minus 2

Answer 1

Answer:

yes 2 is zero

Step-by-step explanation:

${x}^{3} - 4 {x}^{2} + 5x - 2 \\ = {2}^{3} - 4 \times {2}^{2} + 5 \times 2 - 2 \\ = 8 - 16+ 10 - 2 \\ = 8 + 10 - 16 - 2 \\ = 18 - 18 \\ = 0$