Which of these is a correct expansion of (3x -2)(2x^2+5)

B

Step-by-step explanation:

Given

(3x - 2)(2x² + 5)

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

= 3x(2x² + 5) - 2(2x² + 6) ← distribute both parenthesis

= 3x × 2x² + 3x × 5 +(- 2) × 2x² +(- 2) × 5 → B

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.