How do you simplify (8x^2 + 1) + (3x^2 - 2)?

1 Answer
Aug 1, 2016

11x^2-1

Explanation:

(8x^2+1)+(3x^2-2)

To simplify it we need to first get rid of the brackets.

8x^2+1+3x^2-2

Because the sign between two brackets is + therefore the sign in the second bracket (minus-) stays the same.

Then we add 8x^2 and 3x^2 together because they both have x^2 in common and 1 and -2 because they are ordinary numbers.

8x^2+3x^2+1-2=
=11x^2-1