The question above is incomplete because the question and the options given are not properly written
Complete question
Use the grouping method to factor the polynomial below completely.
x³ + 2x² + 5x+10
O A. (+5)(x+2)
O B. (x²+5)(x+2)
O C. (+5)(x+5)
O D. (+5)(x+5)
Answer:
O B. (x²+5)(x+2)
Explanation:
From the above question, we are given the polynomial:
x³ + 2x² + 5x+10
Using the grouping method to factor the polynomial
= x³ + 5x +2x² + 10
= (x³ + 5x) +(2x² + 10)
= x(x² + 5) +2(x² + 5)
= (x + 2) (x² + 5)
Therefore, the factor of the polynomial x³ + 2x² + 5x + 10 is (x + 2) (x² + 5).