Answer:
uhm i would say the second one but i might be very wrong
Step-by-step explanation:
Hello,
f(n+1)=f(n)-2
f(1)=10
f(2)=8
f(3)=6
...
Sqrt(1-3x)=x+3
[sqrt(1-3x)]^2=(x+3)^2
1-3x=(x+3)(x+3)
1-3x=x^2+6x+9
-3x=x^2+6x+8
0=x^2+9x+8
The answers are -1 and -8 BUT, we have to plug them back into the original equation to make sure we don't get a negative under the square root sign.
After doing this, we realize that only -1 works, so the answer is x=-1
Sorry that this took forever to answer. I was thinking of a good way to explain this, and if you need any further explanation, message me:)
Best wishes:)
Answer:
10x10= 100
Step-by-step explanation:
thx for the points
hope you have a wonderful dayyy
