Question

factorise : 5x³ + 40y³​

Answer 1

Answer:

5( x^3 + 8y^3)

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Answer 2

Answer:

5 (x + 8y){x² - (8xy) + 64y²}

Step-by-step explanation:

a³ + b³  =  (a + b)(a² - ab + b²)

5x³ + 40y³

= 5 ​(x³ + 8y³)

= 5(x + 8y){(x)² - (x *8y) + (8y)²}

= 5 (x + 8y){x² - (8xy) + 64y²}

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