Question

find the cubes of m-3n with steps

Answer 1

Answer:

What happens when a solution of an acid is mixed with a solution of a base  

in a test tube?

2) Write the chemical formula of hydrated copper sulphate and anhydrous  

copper sulphate.

3) Why cake or bread becomes soft & spongy on adding baking powder? Write  

chemical equation.

Step-by-step explanation:

Answer 2

Answer:

m³-9m²n+27mn²-27n³

Step-by-step explanation:

Concepts needed-

(a-b)³=a³-3a²b+3ab²-b³

Here m is a and 3n is b.

Putting into the formula,

Cube of m-3n

= (m-3n)³

= m³-3×m²×3n+3×m×(3n)²-(3n)³

= m³-9m²n+27mn²-27n³

Hope it helps you...

Pls mrk me brainliest...