It is a binomial expression, the sum of two squares.
_____
Roots of it are imaginary: b = ±(5/3)i.
Its the red one bc its between 1 and 12
X= <span>√(54-3x)
square both sides:
x^2=54-3x
bring everything to the left:
x^2 + 3x - 54= 0
solve using quadratic formula:
x= (-3 +/- </span>√(9- 4(-54)))/2=
(-3+/- <span>√(9+216))/2=
(-3 +/- </span><span>√225/2=
(-3 +/- 15)/2=
two options:
1) x= (-3+15)/2= 12/2=6
2) x= (-3-13)/2= -18/2= -9</span>
False
I think that’s right because three times 5 is 15 increased by four is 19 not -8 so...
Answer:
It seems like everything is correct but I wouldn't be for sure.
<em>But if you think everything is not right, then don't listen to me lol-</em>
<em>I hope I helped ^^</em>