Question

Find the value of the x cube + 7 x square + 16 X + 78 X equal 1 upon whole root 9 + 4 root 5

Answer 1

Step-by-step explanation:

1/underroot9-4root5

in here u have to check if it is a perfect square or not ok i have also send how to find that the numbers will be in the form of (a+b)² or (a-b)²

please search it in youtube and learn

Answer 2

$5 \sqrt{5}$

Step-by-step explanation:

In which branch did you study bro.