Question

Factor by grouping 5x^3+6x^2+25x+30

Answer 1

(5x + 6) (x² + 5)

Explanation:

5x³ + 6x² + 25x + 30

= x² (5x + 6) + 25x + 30 -- Group 5x³ and 6x²

= x² (5x + 6) + 5 (5x + 6) -- Group 25x and 30

= (5x + 6) (x² + 5) -- Both terms have a common factor of 5x + 6