Answer:
[tex]5 {y}^{2} (4 {y}^{4} - 3 {y}^{2} + 8)[/tex]
Step-by-step explanation:
We want to factor the common monomial out of :
[tex]20 {y}^{6} - 15 {y}^{4} + 40 {y}^{2} [/tex]
The greatest common monomial fact is
[tex]5 {y}^{2} [/tex]
We factor to get:
[tex]5 {y}^{2} (4 {y}^{4} - 3 {y}^{2} + 8)[/tex]
The expression in the parenthesis has no common factor again since we factored the greatest common factor.