SOLUTION: Please help me solve this equation if P=3m+5 and Q=3m-5, show that P^2-Q^2 is equal to 60m
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Question 599907
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Please help me solve this equation if P=3m+5 and Q=3m-5, show that P^2-Q^2 is equal to 60m
Answer by
richard1234(7193)
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P^2 - Q^2 = (P-Q)(P+Q)
Plug everything in and simplify
P^2 - Q^2 = 10(6m) = 60m