Answer:
8, 15, 17 and 
Step-by-step explanation:




(34-12)÷2+7
22÷2+7
11+7
18
Hope this helps! If you want more details in case you don't understand, leave a comment, I'll reply as soon as possible! :)
Rewriting the equation as a quadratic equation equal to zero:
x^2 - x - 30 = 0
We need two numbers whose sum is -1 and whose product is -30. In this case, it would have to be 5 and -6. Therefore we can also write our equation in the factored form
(x + 5)(x - 6) = 0
Now we have a product of two expressions that is equal to zero, which means any x value that makes either (x + 5) or (x - 6) zero will make their product zero.
x + 5 = 0 => x = -5
x - 6 = 0 => x = 6
Therefore, our solutions are x = -5 and x = 6.
Answer:
123456789
213456789
2345678190
AND MORE
Step-by-step explanation:
THIS QUESTION IS IRRELEVANT
and my spelling is wrong