Question 9 of 10 What is the solution to this equation?
9 - 4x + 7x = 15
O A. X=-2
B. X = 2
C. x = 8
O o
D. x = -8

B is the answer

Step-by-step explanation:

hope this help

answer: y=0 if that is what u r looking for

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0