factorise 9X2+Y2+16Z2_6XY+Y2+24ZX
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Answer:
The value of 9x
2
−6xy+y
2
−z
2
=(9x
2
−6xy+y
2
)−z
2
={(3x)
2
−2×3x×y+y
2
}−z
2
=(3x−y
2
)−z
2
=(3x−y+z)(3x−y−z)
Step-by-step explanation:
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