Question

reduce x2 - x = 20

Answer 1

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

Answer 2

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