Question

factorise 27ypower3+125zpower3​

Answer 1

Answer:

(3y+5z) (9y² -15yz +25y²)

Step-by-step explanation:

27y³ + 125z³

=(3y)³ + (5z)³

We know, a³ + b³= (a+b) (a² -ab +b²)

(3y)³ + (5z)³ = (3y+5z) {(3y)²- (3y×5z)+ (5y)²}

= (3y + 5z) (9y² -15yz +25y²)

Hope it helps you