Which of the following number sentences is an example of the commutative property? Select all that apply. 14.7 + 2.8 = 2.8 + 14.7
1.9 × 1 = 1 × 1.9
4.5 × 5.5 = 12.375 × 2
2.5 × (3.4 × 1.4) = (2.5 × 3.4) × 1.4

i dont get the question

step-by-step explanation:

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step-by-step explanation:

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