Step-by-step explanation:
-

Answer: First option is correct.
Step-by-step explanation:
Since we have given that

Now, by factorising , we get

Now, we use the formula i.e.

By using this, we get ,

So,

Answer:
h=9
Step-by-step explanation:
18h+30=192
18h=162
h=9
The answer is (-43/2,-35) you welcome :)