Solve.
16b^2 - 25b = 0
b(16b - 25) = 0
b = 0 or 16b - 25 = 0
b = 0 or b = 25/16
First put b in evidence and get b(16b -25) = 0 then the roots are b= 0 and b= 25/16 OK!
Comments
16b^2 - 25b = 0
b(16b - 25) = 0
b = 0 or 16b - 25 = 0
b = 0 or b = 25/16
First put b in evidence and get b(16b -25) = 0 then the roots are b= 0 and b= 25/16 OK!