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secondary 2 | Maths

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i need help with qn4 a) and c) i've been trying to remember how to solve it but the answer is wrong help me pleasee

(9x²-25+4²) / 4(3x-5)

= 9(x²-1)/4(3x-5)

(c)

(4x-27)/(x-6)²

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