FACTORIZE J1

 

Factorize completely tc + tr - cr - c².  

 

Solution

 

= tc + tr - cr - c².

 

= (tc + tr) – (cr - c²).      [Grouping the factors]

 

= t(c + r) - c(r + c).   [after factoring out]

 

 = (c + r)(t - c) answer

 

  Hence tc + tr - cr - c². =  (c + r)(t - c).   

 

TRY THIS..................

 

Factorize completely yw + yr - rw - w².