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posted by Bob on Tuesday, May 20, 2008 at 6:46pm.

Write an equivalent expression in factored form: x squared + 4 x x squared + x + x + 1

x^2 + 4x = x(x+4) x^2 + x + x + 1 = x^2 + 2x = 1 = (x+1)^2

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