IT blogging: Need help from maths expert. . . thanks.

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lundi 13 février 2017

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Need help from maths expert. . . thanks.

Today, 02:01 AM

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Join Date: May 2016

Posts: 460

Need help from maths expert. . . thanks.

After an hr plus still can't solve this.
Given a is a solution to x^2 - 2x + 5 = 0, proved that 2a^3 + a^2 +25 = 0.