Answer:
The value of x is 88° enjoy
The highest common factor of the two terms is 3, so that goes outside the bracket as 3(____). To get 3x^2, you multiply 3 by x^2, which is your first term in the bracket, and to get -21, you multiply 3 by -7, so your final answer is 3(x^2 - 7). I hope this helps!
I’m pretty sure you just do 11-4 and get 7 and then do like 99 divided by 7?
Relative dating of rock layers i think
