CAT 2018 Linear and Quadratic Equations Question (Medium)

Question

If q 1, then p q - p-q - 6q p -q is equal to

Optima Learn · Accepted Answer

Understanding With q 1, we need to evaluate p q - p-q - 6q p -q . Analyzing Substituting q 1 p 1 - p-1 expands to 6p 2 using the difference-of-cubes expansion for p 1 and p-1 , where the odd-power terms cancel and the even-power terms double . Also, 6 1 p -1 6p -6. Subtracting 6p 2 - 6p -6 8. Evalua

CAT 2018 Linear and Quadratic Equations — Previous Year Question

CAT 2018

Quantitative

Linear and Quadratic Equations

Medium

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