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Formation of Algebraic Expressions

Find the valu...

Question

Find the value of following polynomials by taking x = 1, y = 3 and a = 2:
$x^{3} + y^{2}$

10

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20

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30

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None of these

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Solution

The correct option is A $10$
Let us substitute $x = 1, y = 3$ and $a = 2$ in the given polynomial $x^{3} + y^{2}$ as shown below:

$x^{3} + y^{2} = 1^{3} + 3^{2} = 1 + 9 = 10$

Hence, $x^{3} + y^{2} = 10$ , if $x = 1, y = 3$ and $a = 2$ .

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