2x^2+20x=-38 divide both sides by 2
x^2+10x=-19, halve the linear coefficient, square it, than add that value to both sides of the equation, in this case add (10/2)^2=25...
x^2+10x+25=6 now the left side is a perfect square
(x+5)^2=6 take the square root of both sides
x+5=±√6 subtract 5 from both sides
x=-5±√6 (so answer c.)
Answer:
I don't even see the whole problem?
Step-by-step explanation:
Try asking you Mom/Dad for help.
10 cuz it’s a 2 € 10 and it’s 10
The y represents "some number," so in this case some number divided by three is the right answer
-7+15. this is what i think it is.
