0
Anonymous
Y = x2 + 4x + 11OK. That's very interesting.Is there a question ?
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y = (11-4x)/5
x=2.75 This follows from the equation (4x - 3) + 11 = 19 and 4x = 11
X=1/2
7
(2x + 1)(2x + 1) or (2x + 1)2 so x = -0.5