Question

Factorise 27y3 + 125z3​

Answer 1

Step-by-step explanation:

ab)a

3

+b

3

=(a+b)(a

2

+b

2

−ab)

Now

27y^3 + 125z^3

\begin{lgathered}(3y {)}^{3} + (5z {)}^{3} = (3y + 5z)( {(3y)}^{2} + {(5z)}^{2} - 3y \times 5z) \\ \\ = > (3y + 5z)(9 {y}^{2} + 25 {z}^{2} - 15yz) \: ans\end{lgathered}

(3y)

3

+(5z)

3

=(3y+5z)((3y)

2

+(5z)

2

−3y×5z)

=>(3y+5z)(9y

2

+25z

2

−15yz)ans

Answer 2

Answer:

2×7×y×3 + 1×2×5×z×3

Step-by-step explanation:

this type you do factorise