FACTORIZE 1

Factorize completely mc + mr - cr - c².  

Solution

= mc + mr - cr - c².

= (mc + mr) – (cr - c²).      [Grouping the factors]

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

 = (c + r)(m - c) answer

  Hence mc + mr - cr - c². =  (c + r)(m - c).   

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

Factorize completely pw + pr - rw - w².