Answer:
[tex]-3x^2 -10x + 3[/tex]
Third option from the top
Step-by-step explanation:
We are given
[tex]A = 2x - 7x^2 + 3\\\\\longrightarrow A= -7x^2 +2x + 3\\\\[/tex] (writing in standard form ax² + bx + c)
[tex]B = 4x^2 - 12x[/tex]
A + B =
[tex]-7x^2 + 2x + 3\\\\\indent{\;\;\;\;\;\;+}\\\\\underline{\;\;4x^2-12x\;\;\;\;\;\;}\\\\-3x^2 - 10x + 3[/tex]
