How do you simplify (8x^2 + 1) + (3x^2 - 2)(8x2+1)+(3x22)?

1 Answer
Aug 1, 2016

11x^2-111x21

Explanation:

(8x^2+1)+(3x^2-2)(8x2+1)+(3x22)

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

8x^2+1+3x^2-28x2+1+3x22

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

Then we add 8x^28x2 and 3x^23x2 together because they both have x^2x2 in common and 11 and -22 because they are ordinary numbers.

8x^2+3x^2+1-2=8x2+3x2+12=
=11x^2-1=11x21