Factorise: 7x^3+8y^3-(4x+3y)(16x^2-12xy+9y^2)
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Answer:
-57x3-19y3
Step-by-step explanation:
7x
3
+8y
3
−(4x+3y)(16x
2
−12xy+9y
2
)
=7x
3
+8y
3
−(4x+3y)[(4x)
2
−4x×3y+(3y)
2
]
=7x
3
+8y
3
−(64x
3
+27y
3
)
=−57x
3
−19y
3
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