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In the grid model of \((4p+3)(p+2)\), what will be the constant corner?

Answer and explanation

Correct answer: 6

Direct answer: D, 6, is correct. In the grid for \((4p+3)(p+2)\), separate the variable parts \(4p,p\) from the constants 3 and 2. The constant corner is formed by multiplying the two constant side lengths, not by adding them. Thus its area is \(3 ext{ × }2=6\). The other grid regions are \(4p ext{ × }p=4p^2\), \(4p ext{ × }2=8p\), and \(3 ext{ × }p=3p\), so the full expansion would be \(4p^2+11p+6\). A and B are merely the individual constants, not their product. C is their sum, \(3+2\), which does not represent the corner area. The memory cue is: a corner in a product grid is always obtained by multiplying the two entries meeting at that corner.

Related tags

Grid ModelConstant TermBinomial MultiplicationVisual ModelsVisual Models Of IdentitiesExploring Algebraic IdentitiesMathematicsClass 9 Mcq

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