OpenStudy (cjackson):

reduce x2 - x = 20

7 years ago
OpenStudy (anonymous):

\[x^{2}\]-x-20=0 thus giving (x-5)(x+4)=0 so x=5 or x=-4

7 years ago
OpenStudy (anonymous):

\[x^2-x-20=0\] Gives - \[(x-5)(x+4)\] thus \[x=5\] or \[x=-4\]

7 years ago