Question

divide using factorisation (81x²-81) ÷(x-1)​

Answer 1

Answer: 81x+81

Step-by-step explanation:Factor the numerator and denominator and cancel the common factors.

Answer 2

Answer:

$\frac{(81 {x}^{2} - 81) }{(x - 1)} \\ = \frac{81( {x}^{2} - 1)}{(x - 1)} \\ = \frac{81(x +1)(x - 1)}{(x - 1)} \\ = 81(x + 1) \\ = 81x + 81$

PROPERTY USED -

${x}^{2} - {y}^{2} = (x + y)(x - y)$

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