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pls solve this question

Q. ${\int}_{0}^{\infty}{\left(x-\frac{2}{\sqrt{a\mathrm{\pi}}}\right)}^{2}4a.\sqrt{\frac{a}{\mathrm{\pi}}}{x}^{2}.{e}^{-a{x}^{2}}dx$ .

Q. ${\int}_{0}^{\infty}{\left(x-\frac{2}{\sqrt{a\mathrm{\pi}}}\right)}^{2}4a.\sqrt{\frac{a}{\mathrm{\pi}}}{x}^{2}.{e}^{-a{x}^{2}}dx$ .

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