(-9)(x) =
x2+x-4
x2 + x + 4
* x2 – X+6
O x2 + x + 6

if you are solving for o it is −x2−11x−6

                                                   6x2

if you are solving for x it is im not sure sorry  

Step-by-step explanation:

−9x=x2+x−4x2+x+4x2−x+6ox2+x+6

Step 1: Flip the equation.

6ox2+x2+2x+6=−9x

Step 2: Add -x^2 to both sides.

6ox2+x2+2x+6+−x2=−9x+−x2

6ox2+2x+6=−x2−9x

Step 3: Add -2x to both sides.

6ox2+2x+6+−2x=−x2−9x+−2x

6ox2+6=−x2−11x

Step 4: Add -6 to both sides.

6ox2+6+−6=−x2−11x+−6

6ox2=−x2−11x−6

Step 5: Divide both sides by 6x^2.

6ox2                −x2−11x−6

6x2                      6x2

o= −x2−11x−6

          6x2

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

hard

step-by-step explanation: