Which polynomial, when added to the polynomial 5x^2–3x–9, is equivalent to x^2–5x+6?

Step-by-step explanation:

We can look at the terms one by one. We know that to get 5 to 1 we must add -4 so the first term is:

For the x term to go from -3 to -5 we must add -2, so the second term is

Lastly, to go from -9 to 6 we must add 15. The final polynomial added is:

the answer is y = 11.54

hope this : )

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)