Step-by-step explanation:
Remember when expanding radicals,

When expanding radicals into two radicals, we don't let our radicand have two negative answers.


We don't do this



Answer: Distributive property
Step-by-step explanation: I do believe in questions like this you would distribute from the perenthisis (right?)

<h3><u>Distance travelled each day is</u> : </h3>
<h3><u>Explanation</u> : </h3>
Distance travelled in 14 days is : 456.4 km
And if he travels same Distance each day, so let the Distance travelled on each day be x
According to question ~



So, he travels 32.6 km per day
4x^2+9x-(x^2-6x+9)+11
4x^2+9x-x^2+6x-9+11
3x^2+15x+2