What is the value of p?
(1) 5p-20 = 5
(2) (p-10)^2 = p^2
The answer to this DS is D. However, I got A. For statement 2, I took the squareroot of both sides and the p's canceled out. What did I do wrong? I feel like i"m missing something totally obvious.
you cant just take the square root. try this
p^2 -20p + 100 = p^2
(a-b)^ 2 = a^2 -2ab +b^2
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