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If 9y2 – a = (3y – 2) (3y+2), find the value of a |
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Answer» Answer: a = 4 Step-by-step EXPLANATION: LHS = 9y² - a using (a+b)(a-b) = a²-b² identity, = 9y² - 4 since, LHS = RHS (Given) 9y²- a = 9y²- 4 - a = - 4 a = 4 |
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