Question

​What should be added to 2x​² - 5x +7 to get 3x² +4x - 6​

Answer 1

Subtract -- (2x²-5x+7)from (3x²+4x-6)

→ 3x²+4x-6 - (2x²-5x+7)

→ 3x²+4x-6 -2x²+ 5x - 7

→ x² + 9x - 13 Ans..

Hope it will help you 

Answer 2

Step-by-step explanation:

2x²-5x+7--------(1)

3x²+4x-6

- - +

________

-x²-9x+13-----(2)

_________

If we add (1)and(2)

2x²-5x+7

-x²-9x+13

+ + -

_______

3x²+4x-6

_______

It means if we add - x²-9x+13 in (1) then it become 3x²+4x-6