SOLUTION: Solve for p a) (7p)^(-1) + (2p)^(-2) - 4 = 0 Can you please help me out? Thanks so much in advance:)

Question 862852: Solve for p
a) (7p)^(-1) + (2p)^(-2) - 4 = 0
Can you please help me out? Thanks so much in advance:)
Answer by josgarithmetic(39627) (Show Source): You can put this solution on YOUR website!
Easier to handle in positive exponents.

Simplest common denominator is .

Now what? Use general solution for a quadratic equation to solve for p; but be sure to check each result in the original equation in case of one solution being false for the original equation.
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