Option 1 - ![3x^2-4x+15](/tpl/images/0368/1578/da6be.png)
Step-by-step explanation:
Given : Expression ![(5x^2 +3) -(2x^2 + 4x -12)](/tpl/images/0368/1578/fe4c6.png)
To find : The subtraction of the expression ?
Solution :
Step 1 - Write the expression :
![(5x^2 +3) -(2x^2 + 4x -12)](/tpl/images/0368/1578/fe4c6.png)
Step 2 - Open the parenthesis
![5x^2 +3 -2x^2- 4x +12](/tpl/images/0368/1578/546c1.png)
Step 3 - Solve
![3x^2-4x+15](/tpl/images/0368/1578/da6be.png)
Therefore, The subtraction of expression is
![(5x^2 +3) -(2x^2 + 4x -12)=3x^2-4x+15](/tpl/images/0368/1578/8d44b.png)
So, option 1 is correct.