3(x-5y)²
3(x²+25y²-10xy)
3x²+75y²-30xy
3x²-30xy+75y²
ingat rumus
(a+b)² = a² + b² + 2.a.b
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3(x-5y)²
3(x²+25y²-10xy)
3x²+75y²-30xy
3x²-30xy+75y²
ingat rumus
(a+b)² = a² + b² + 2.a.b