OpenStudy (anonymous):

Factor completely x2 + 20x – 36

6 years ago
OpenStudy (saifoo.khan):

Prime.

6 years ago
OpenStudy (anonymous):

(x + _)(x - _) = x@ + 20x - 36 So _ times _ needs to equal negative 36 while _ plus _ needs to equal 20x. But no two real (non-imaginary) numbers can yield a negative when multiplied.

6 years ago