Question

5.Bo factored x2 – 10xy + 16y2 as follows:



Line 1
x2 – 10xy + 16y2

Line 2
x2 – 8xy – 2xy + 16y2

Line 3
x(x – 8) – 2y(x – 8y)

Line 4
prime
A.Did Bo correctly factor the polynomial? Justify your response by explaining why it is is factored correctly or by showing the correct solution if it is not factored correctly.
B.Explain how you would know if a polynomial of the form ax2 + bxy + cy2 was prime?