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Calc. Allowed: Which of the following is equivalent to \left(1.5x-2.4\right)^2-\left(5.2x^2-6.4\right)?
A
−2.95x^2−7.2x+0.64
B
-2.2x^2+1.6
C
−2.95x^2−7.2x+12.16
D
-2.2x^2+11.2
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