Asked by Art

x² + 10x + 25 – 9y² I am asked to state if this polynomial is prime or to factor it. I can clearly see that you can take the SQRT of the equation, however, there is a 10x there that is not a perfect square. What am I doing wrong?
Answered by R_scott
(x + 5)^2 - (3 y)^2 ... factor the difference of squares
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