(x+3)²(65)=x(6)
Solve using quadric formula

Step 1: Simplify both sides of the equation.

Step 2: Subtract 6x from both sides.

For this equation: a=65, b=384, c=585

Step 3: Use quadratic formula with a=65, b=384, c=585

Therefore, There are no real solutions.

78.59 is the mean

step-by-step explanation:

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.