Multiple Choice Questions

The expression x3q2 x3pt 4x2pt 4x2q2 3xq2 3xpt is divisible by ........

Quantitative Aptitude (CDS) Algebra

The expression x³q² - x³pt + 4x²pt - 4x²q² + 3xq² - 3xpt is divisible by

(x - 1) only

(x - 3) only

both (x - 1) and (x - 3)

neither ( x - 1) nor (x - 3)

x³q² - x³pt + 4x²pt - 4x²q² + 3xq² - 3xpt
x³q² - 4x²q²+ 3xq²- x³pt + 4x²pt - 3xpt
=xq²(x²−4x+3)−xpt(x²−4x+3)

=x(x²−4x+3)(q²−pt)
=x(x−1)(x−3)(q2−pt)
So both (x - 1) and (x - 3) are factors

Submit Error

(v3+1)(10+v12)(v12-2)(5-v3)

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