Question

pls give the answers of q4,5​

Answer 1

Answer:

Q4) Will always be irrational.

Q5) See below

Step-by-step explanation:

Use long division to solve for Question 5, and if there's no remainders, then it's a factor. From there find k. You can find out how to use long division online, so give it a try.

Answer 2

Answer:

5.2(-2)³+5(-2)²-(-2)-k=0

-16+20+4-k=0

8-k=0

k=8

Step-by-step explanation:

$4. \sqrt{4} \times 2 = 2 \sqrt{4}$