Question

Where, a=2, x=2 and y=(-3)
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Answer 1

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$\longrightarrow \sf2 {a}^{2} + {x}^{2} - {y}^{2}$

Here

• a = 2
• x = 2
• y = -3

Substitute values in equation

$\longrightarrow \sf2( {2)}^{2} + ( {2)}^{2} - {( - 3)}^{2} \\ \\\longrightarrow \sf 2(4) + 4 - ( +9) \\ \\\longrightarrow \sf 8 + 4 - 9 \\ \\\longrightarrow \sf 3$

Answer 2

Given:

• a = 2
• x = 2
• y = -3

Question:

• 2a² + x² - y²

Solution:

⠀ ⟹ 2 ༝ 2² + 2² - (-3)²

⠀ ⟹ 2 ༝ 4 + 4 - 9

⠀ ⟹ 8 + 4 - 9

⠀ ⟹ 12 - 9

⠀ ⟹ 3.

• So, The Correct Answer Is 3.

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