Help me with algebra
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1
Answer:
Step-by-step explanation:
1) 8p³ + 125q³
= (2p)³ + (5q)³
//we know that a³ + b³ = (a + b) (a² - ab + b²)
= (2p + 5q)(4p² -10pq+25q²)
2) m³ + 1/64m³
= m³ + (1/4m)³
//we know that a³ + b³ = (a + b) (a² - ab + b²)
= (m + 1/4m)(m² - 1/4 + 1/16m²)
3) 250x³ + 432y³
= 2 ( 125x³ + 216y³)
= 2[ (5x)³ + (6y)³
//we know that a³ + b³ = (a + b) (a² - ab + b²)
= 2[ (5x + 6y)(25x² - 30xy + 36y²)]
Answered by
0
Answer:
a 3 + b 3 = ( a + b ) ( a 2 - a b + b 2 ), Use thid formula and after u solve
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