3x+1/2 × 3x-1/2=9x^2-p find value of p
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(3x+1/2)*(3x-1/2) = 9x^2 - p
=> 9x^2 - 1/4 = 9x^2 - p [since, (a+b)(a-b)= a^2 - b^2]
=> on comparing, we get
=> p= 1/4
=> 9x^2 - 1/4 = 9x^2 - p [since, (a+b)(a-b)= a^2 - b^2]
=> on comparing, we get
=> p= 1/4
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