Ax^2+bx=c
REMEMBER THIS
ok
first, make sure that a is 1
done
now take 1/2 of b and square it
-18/2=-9, (-9)^2=81
add that to both sides
x²-18x+81=19+81
x²-18x+81=99
factor perfect square
(x-9)²=100
square root both sides
don't forget positive and negative root
x-9=10
x-9=-10
ad 9 to both sides
x=19
x=-1
answer is -1; 19
2nd choice is answer
I think its 0.004. i just did it on my calculator
12+25+45+65+34
= 181
Must click thanks and mark brainliest
Answer:
The answer is 568.76 if u want rounded and 568.76015
Step-by-step explanation:
Because when you multiply them you get the answer. Much easier if you line them up.
Plzzz give thanks and give brainlest
