Line 1 x^2 – 10xy + 16y^2

Line 2 x^2 – 8xy – 2xy + 16y^2

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 ax^2 + bxy + cy^2 was prime?

Question

Line 1	x^2 – 10xy + 16y^2

Line 2	x^2 – 8xy – 2xy + 16y^2

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 ax^2 + bxy + cy^2 was prime?

mathmale · Answer

These are fine:

Line 1	x^2 – 10xy + 16y^2

Line 2	x^2 – 8xy – 2xy + 16y^2

The first mistake shows up in Line 3.  What do you think this mistake is?