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Question
Factorise the expression and divide them as directed:
(9x2 – 4) ÷ (3x + 2)
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Solution
We have,
`(9x^2 - 4) ÷ (3x + 2) = (9x^2 - 4)/(3x + 2)`
= `((3x)^2 - (2)^2)/(3x + 2)`
= `((3x + 2)(3x - 2))/(3x + 2)` ...[∵ a2 – b2 = (a + b)(a – b)]
= 3x – 2
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