Find b if ( x - 3 ) (x + b ) = xx - 7x + 12

Asked by sarikalekhi | 30th Aug, 2019, 06:27: PM

Expert Answer:

( x - 3 ) (x + b ) = xx - 7x + 12
→( x - 3 ) (x + b ) = x2 - 7x + 12
→( x - 3 ) (x + b ) = (x - 4)(x - 3)
→ x + b = x - 4
→ b  = - 4
 



Answered by Yasmeen Khan | 30th Aug, 2019, 06:48: PM