Answer:
(5x - 1)(x + 4)
Step-by-step explanation:
5x^2 + 19x - 4
5x^2 - x + 20x - 4 We split 19x into -x and 20x
(5x^2 -x) + (20x - 4) We use the method of factoring by grouping
x(5x - 1) + 4(5x - 1) Use distributive property
(5x - 1)(x + 4) This will be our answer
Hope this helps!
