Define a variable, write an inequality, and solve the problem : Four less than nine times a number is greater than eleven more than two times the same number.

x > 15/7

Step-by-step explanation:

four less than nine times a number:

9x - 4

Eleven more than two times the same number:

2x + 11

Thus:

9x - 4 > 2x + 11

7x > 15

x > 15/7

I hope this helps you :)

y= -

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form