Question

Write (3x^2-y)^3 in expanded form

Answer 1

Gudnyt

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Here's ur answer

(3x²-y)³

= (3x²)³ + (-y)³ + 3*(3x²)²*-y + 3*3x²*(-y)²

= 27x⁶ - y³ - 27x⁴y + 9x²y²

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Answer 2

AnsWer:-

↝(3x²-y)³

=[(a-b)³=a³-b³-3a²b+3ab²]

↝(3x²)³-y³-3×(3x²)²×y+3×3x²×y²

↝27x⁶-y³-27x⁴y+9x²y²

$\rule{200}{1}$

•Other Identities include:-

(a+b)³=a³+b³+3a²b+3ab²

a³+b³=(a+b)³-3ab(a+b)

$\rule{200}{2}$