Which are the solutions of the quadratic equation? x2 = 9x + 6 startfraction negative 9 minus startroot 105 endroot over 2 endfraction comma startfraction negative 9 + startroot 105 endroot over 2 endfraction startfraction negative 9 minus startroot 57 endroot over 2 endfraction comma startfraction negative 9 + startroot 57 endroot over 2 endfraction startfraction 9 minus startroot 105 endroot over 2 endfraction comma startfraction 9 + startroot 105 endroot over 2 endfraction startfraction 9 minus startroot 57 endroot over 2 endfraction comma startfraction 9 + startroot 57 endroot over 2 endfraction

The correct answer is C. 9 -√ 105/ 2,  9 + √ 105/ 2

Step-by-step explanation:

Let's find the solutions for the quadratic equation:

x² = 9x + 6

x² - 9x -6 = 0

Using the quadratic formula, we have:

x = [- (-9) +/- √ (-9)² - 4 * 1 * -6]/2 * 1

x = [ 9 +/- √ (81 + 24]/2

x = [ 9 +/- √ (105]/2

x₁  =  [ 9 + √ (105]/2

x₂ =  [ 9 - √ (105]/2

The correct answer is C. 9 -√ 105/ 2,  9 + √ 105/ 2

Note: Same answer to question 14133688, answered by me today.

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here