1 Answer

Chan Yoong Hon · Answer 1 · 2023-02-11T21:26:42+0000

ANSWER:

5

Explanation:

The perfect square trinomial is given as follows:

$(a\pm b)^2=a^2\pm2ab+b^2$

Therefore, in this case would be:

$\begin{gathered} x^2+2kx+25 \\ a=x \\ b=5 \\ (x+5)^2=x^2+2\cdot5x+25 \\ k=5 \end{gathered}$

Therefore the value of k is 5

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