Question

(x-5y) (x²+5xy+25y²) by using identity.

Answer 1

Answer:

x³-125y³

Step-by-step explanation:

(x-5y)(x²+5xy+25y²)

=(x-5y){x²+(5y)²+5xy}

=x³-(5y)³ (since a³-b³=(a-b)(a²+b²+ab))

=x³-125y³

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