1) -2*(-4)^2+3*(-4)-5=-49
2) -2*(-1.4)^2+3*(-1.4)-5=-13.12
3) -2*(-1)^2+3*(-1)-5=-10
4) -2*(-5)^2+3*(-5)-5=-70
5) -2*2.5^2+3*2.5-5=-10
6) -2*5^2+3*5-5=-40
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1) -2*(-4)^2+3*(-4)-5=-49
2) -2*(-1.4)^2+3*(-1.4)-5=-13.12
3) -2*(-1)^2+3*(-1)-5=-10
4) -2*(-5)^2+3*(-5)-5=-70
5) -2*2.5^2+3*2.5-5=-10
6) -2*5^2+3*5-5=-40