Subtract the sum of 2x-x2+5 and -4x-3+7x2 from 5.
As given in the question, the Sum of 2x – x2 + 5 and -4x – 3 + 7x2 is given as:
= 2x – x2 + 5 – 4x – 3 + 7x2
= 2x – 4x – x2 + 7x2 + 5 – 3
= -2x + 6x2 + 2 (i)
Now subtracting equation (i) from 5 we get,
Subtracting (ii) from (i), we get
= 5 - (-2x + 6x2 + 2)
= 5 + 2x – 6x2 – 2
= 3 + 2x – 6x2
Therefore, the resultant expression is 3 + 2x – 6x2