Question

13. Using suitable identity to evaluate: (abc-6) (abc - 3)​

Answer 1

Answer:

a²b²c² -9abc + 18

Step-by-step explanation:

Identity used : (x+a)(x+b) = x²+x(a+b)+ab

sum:

(abc-6)(abc-3)

(abc)² + abc(-6-3) + (-6)(-3)

a²b²c² -9abc + 18

Hope it helps

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