Adding Polynomial Expressions. (

SIMPLIFY

what algebraic expression must be added to the sum of 3x^2+4x+8 and 2x^2-6x+3 to give 9x^2-2x-5 as the result?

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.

Ibelieve the answer is b