Question

5p square -25p+20÷(p-1)

Answer 1

Refer the attachment attached above!

Answer 2

    5p² - 25p +20/p - 1
=,5p² - (20+5)p+20 /p -1
=5p² - 20p - 5p+20 /p -1
=5p(p - 4) - 5(p - 4) /p - 1
=(p - 4)(5p - 5) /p -1

then,p - 4=0     or, 5p - 5=0
     ∴,p=4             ∴5p=5 
                            ∴p=5/5=1

  (4-4)(5*4 - 5) / 4 -1      or, (1 - 4)(5*1 - 5) / 1 - 1
=0 * 15 / 3=0                     = -3 * 0 / 0 =0
so,the ans is 0