If A = x2 (1 − 3y2), B = x (xy2 − 2x) and C = 3y (y − 4x2y), then A + B − C = px2 + qx2y2 + ry2.
What is the value of (5p + q − r) ?
Correct Answer :
8
Solution :
The correct answer is 8.
Given the expressions:
First, expand each of the given algebraic expressions:
Now, calculate :
Group the like terms together:
Comparing this result with the given form :
Now evaluate :
Thus, the value of is 8.
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