Question

What should be added to
$2 {x}^{2} -5x + 7$
to get
${x}^{2} + 11x - 3$
​

Answer 1

Answer:

$- x^2 + 16x - 10$ should be added to $(2x^2 - 5x + 7)$ to get $(x^2 + 11x - 3)$

Step-by-step explanation:

Required expression to add is the result of subtraction from the result targeted to the first expression given

$= (x^2 + 11x - 3) - (2x^2 - 5x + 7)$

$= (x^2 - 2x^2) + (11x + 5x) - 3 - 7$

$= - x^2 + 16x - 10$