Question

plz solve this whole worksheet

Answer 1

1.) 6xy +9yz+8xt+12zt
     3y(2x+3z)+ 4t(2x+3z)
      (2x+3z)(3y+4t)

2,3,5,7 i don't know

4 x square -22x+105
    xsquare -15x-7x+105
      x(x-15) -7(x-15)
      (x-15)(x-7)

6) let 2a-b as x 
so question 6 will be 9xsquare-4x-13 
 9xsquare -13x+9x-13
x(9x-13)+1(9x-13)
(9x-13)(x+1),now put the value of x as 2a-b

8) xsquare -3x-12x+36
     x(x-3)-12(x-3)
      (x-3)(x-12)


friend i think in part v it will be -3(x+1/x) or  first term will be (x-1/x)square 
if yes you can solve it as part vi 

hope i helped you 
pls mark it as brainliest answer