Question

factorise the following z²-10z+25​

Answer 1

Answer:

$= {z}^{2} - 10z + 25 \\ = {z}^{2} - (5 + 5)z + 25 \\ = {z}^{2} - 5 z- 5 z+ 25 \\ = z(z - 5) - 5(z - 5) \\ = (z - 5)(z - 5)$

z=5,5

Hope it helps you ❣️☑️☑️

Answer 2

Answer:

Step-by-step explanation:

factorise the following z2-10z+25

z2-(5+5)z+25

multiply (minus) and(z)

so the equation is

(z2-5z)(-5z+25)

z(z-5) -5(z-5)

(z-5)  (z-5)

so,the z=5,5