Factorise f²-f-20 step by step

Explanation:

Step 1: Add more suitable components

Step 2: apply associative property

Step 3: combine the common components

Note:

To factorize an expression in form of , the coefficient is often turned into the sum of 2 new components and that satisfy x =

In the above problem: = -1, is then turned into and , that satisfy x = x = =

Hope this helps!

:)

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b