Final answer:
The correct grouping for the quadratic expression 6x² + 7x - 5 is option a) (3x - 5)(2x + 1).
Step-by-step explanation:
The correct grouping for the quadratic expression 6x² + 7x - 5 is option a) (3x - 5)(2x + 1).
To determine the correct grouping, we need to consider the factors of the quadratic expression. We can find the factors by using the quadratic formula or factoring methods. In this case, the factors are (3x - 5) and (2x + 1), which matches option a).
Therefore, the correct grouping for the quadratic expression 6x² + 7x - 5 is (3x - 5)(2x + 1).