Multiply the following polynomials. (3x²- 5x + 2)(7x + 1)

A. 21x³- 35x²+ 14x + 1
B. 21x³+ 38x²+ 19x + 2
C. 21x³+ 3x²+ 14x + 2
D. 21x³- 32x²+ 9x + 2

21x^3-32x^2+9x+2

Step-by-step explanation:

(3x²- 5x + 2)(7x + 1)

Distribute

7x* (3x²- 5x + 2) + 1 *(3x²- 5x + 2)

21 x^3 -35x^2 +14x + (3x²- 5x + 2)

Combine like terms

21x^3-32x^2+9x+2

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted

step-by-step explanation: