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put this solution on YOUR website!if roots are 2 and -2, then the quadratic trinomial is a product of two binomials (x-2) and (x+2), and a coefficient a. To find a, you need to use information about maximum point: with x=0, a(x-2)(x+2) = 2. a(0-2)(0+2) = 2, or -4a = 2, or a = -1/2. So, you ttrinomial is -1/2*(x-2)(x+2).