Fug 20,5:45:45 PM Find the common ratio of the geometric sequence 19,95,475,-

5

Step-by-step explanation:

To find the common ratio, take the second term and divide by the first term

95/19 = 5

To verify take the third term and divide by the second term

475/95 = 5

The common ratio is 5

- 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