Question 1202503
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<pre>

If I correctly interpret your formula,  (a^2)*b - b^2,  when a = 3  and  b = -4,  is


    (3)^2*(-4) - (-4)^2 = 9*(-4) - 16 = -36 - 16 = -52.    <U>ANSWER</U>
</pre>

Solved.