factorise : 5x³ + 40y³
Answers
Answered by
5
Answer:
5( x^3 + 8y^3)
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Answered by
1
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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