Answer:
13x^2-4
Step-by-step explanation:
(5x^2-3)+(8x^2-1)=
5x^2+8x^2-3-1=
(5x2-3)+(8x2-1)
13x squared - 4
(5 • (x2)) - 3) + (23x2 - 1)
(5x squared - 3) + (8x squared - 1)
