Question

expand and simplify the equation

Answer 1

Answer:

9x + x² - 17

Step-by-step explanation :

(3x - 4 )² + ( x + 1 )( x- 1 )

= 9x - 16

( x + 1 )( x - 1)

(x² - x + x - 1)

= x² - 1

( combine all new equations solved )

9x - 16 + x² - 1

( re-arrange like terms )

9x + x² -16 - 1

9x + x² - 17