Question

help...............​

Answer 1

Plz mark my answer as the brainliest answer

Step-by-step explanation:

i) 8x3+27y3+z3-18xyz

=(2x) 3+(3y) 3+z3-3*2x*3y*z

=(2x+3y+z)[(2x) 2+(3y) 2+(z)2-6xy-3yz-2zx]

ii) 8x3+y3+z3-6xyz

=(2x) 3+(y) 3+(z) 3-3*2x*y*z

=(2x+y+z)[(2x) 2+(y) 2+(z) 2-2xy-yz-2zx]

iii) x2-22x+85

=x2-17x-5x+85

=x(x-17)-5(x-17)

=(x-5)(x-17)