Question

Please help me I keep on getting the third box wrong

Answer 1

Maybe try 1 I cannot figure it out

Answer 2

Answer:

$(2 {a}^{2} + 1)(1 {a}^{2} + 9)$

Step-by-step explanation:

$2 {a}^{4} + 19 {a}^{2} + 9 \\ 2 {a}^{4} + {a}^{2} + 18{a}^{2} + 9 \\ {a}^{2} (2 {a}^{2} + 1) + 9(2 {a}^{2} + 1) \\ (2 {a}^{2} + 1)( {a}^{2} + 9)$