Question

3xsquared - 3x -1 = x + 1

Answer 1

x = 2 + √10

-------------

3

x = 2 - √10

------------

3

Explanation:

3x² - 3x - 1 = x + 1

-x - 1 -x - 1

3x² - 4x - 2 = 0

-b +/- √b² - 4ac -(-4) +/- √(-4)² - 4(3)(-2) 4 +/- √16 + 24

------------------ = ---------------- = -----------------

2a 2(3) 6

4+/-√40 4 + √ 4 × 10 4 +2√10 2 + √10

------------ = ------------- = ------------ = ------------

6 6 6 3

4 - √ 4 × 10 4 - 2√ 10 2 - √10

---------------- = ----------------- = ---------------

6 6 3

I hope this helps!

Answer 2

Here use the quadratic formula