Answer:
X=9 or x=-9
Step-by-step explanation:
X^2=81
Can be written as
x^2-81=0
Factorize by the property:
a^2-b^2=(a-b)(a+b)
So the expression becomes:
(x-9)(x+9)=0
Therefore, either x-9=0or x+9=0
Then the solutions are x=9 or x=-9
I would say 110 becuz if u add all of those together u would get 100 then u find a number that will get you to 210 which would be 110 then u get 210 ..hope this helps sorry if not
Answer:
i think c. sorry if its wrong
Step-by-step explanation:
Answer:
it's the last one I think
There are 4 terms in the expression
