Answer:
x = - 3/2 thats the answer
Answer:

Step-by-step explanation:
We are to factorize the expression
completely. To do this, we will apply the expression below;
The expression can be rewritten as 
To factorize the expression, we need to first factorize
first

The we will make
the subject of the formula as shown;




This last result gives the expansion of the expression
If there is 23 classrooms and each has 10 then you would have to times 23 by 10 - 23x10=230
Answer:
a) 30
b) 88
c) 70
d) 16
e) 160
f) 250
Step-by-step explanation:
So the first step would be to switch the numbers around. For example A would be 15 and 50 instead of the original order of 50 and 15. You would then take the 1st number in the new arranged order (15) and multiply it by 100, then divide in that order. 1500/50 = 30.
Another example, letter B.
Step 1 - Rearrange : 22 and 25
Step 2 - Multiple by 100 = 2200
Step 3 - Divide : 2200/25 = 88
Good Luck :) Hope this helped.