A teacher wrote an algebraic expression on the board and asked students to write an equivalent expression. The teacher's expression is partially shown below.

(5a + [_]) + (1/10c + [_]d) - 4

Inez wrote: -4 + (1/10c + 11d). Manny wrote:
4 - (11d + 1/10c). Explain why both students cannot be correct.

quit

step-by-step explanation:

include a picture of the drawing in order for me to

step-by-step explanation:

answer: i wpould go with c

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