Answer:
![5 {y}^{2} (4 {y}^{4} - 3 {y}^{2} + 8)](https://tex.z-dn.net/?f=5%20%7By%7D%5E%7B2%7D%20%284%20%7By%7D%5E%7B4%7D%20%20-%203%20%7By%7D%5E%7B2%7D%20%20%2B%208%29)
Step-by-step explanation:
We want to factor the common monomial out of :
![20 {y}^{6} - 15 {y}^{4} + 40 {y}^{2}](https://tex.z-dn.net/?f=20%20%7By%7D%5E%7B6%7D%20%20-%2015%20%7By%7D%5E%7B4%7D%20%20%2B%2040%20%7By%7D%5E%7B2%7D%20)
The greatest common monomial fact is
![5 {y}^{2}](https://tex.z-dn.net/?f=5%20%7By%7D%5E%7B2%7D%20)
We factor to get:
![5 {y}^{2} (4 {y}^{4} - 3 {y}^{2} + 8)](https://tex.z-dn.net/?f=5%20%7By%7D%5E%7B2%7D%20%284%20%7By%7D%5E%7B4%7D%20%20-%203%20%7By%7D%5E%7B2%7D%20%20%2B%208%29)
The expression in the parenthesis has no common factor again since we factored the greatest common factor.
Answer:
Step-by-step explanation:
that would be : (-7x + 4)(-7x - 4)
because the difference of squares is a^2 - b^2.....but when factored, u get :
(a + b)(a - b)
You would do 5^2•3.14
Which would equal 78.5
So D is ur answer