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Without using a calculator, compute $1002^2-502^2+298^2-202^2$.? How do I solve f(x+3) when f(x) = 4-x^2? Find two different integers such that the square of the integer is 12 less than seven times the integer? Y’’’-y’’-4y’-6y=17e^(-x) Express the solution inits simplest form? In the image below, the magnitude of the inclined reaction R1 at A would be?