Instructions
In each of these Question two quantities are given, one in column A and one in column B.
Compare the two quantities.
Solution
x = -2
Column A:
$$3x^2 + 2x - 1$$
$$3*(-2)^2 + 2(-2) -1$$
$$12-4-1$$
$$7$$
Column B:
$$x^3 + 2x^2 + 1$$
$$(-2)^3 + 2(-2)^2 +1$$
$$-8+8+1$$
$$1$$
So, Quantity A > Quantity B
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