What word describes the equal shares of the shape?

answer:

x = 0 or x = -9

step-by-step explanation:

given equation is :

x²+18x = 9x

adding -9x to both sides of above equation,we get

x²+18x-9x = 9x-9x

add like terms

x²+9x = 0

make factors

x(x+9) = 0

applying zero-product property to above equation , we get

x = 0 or x+9 = 0

x = 0 is one of solution of x²+18x = 9x.

now, x+9 = 0

adding -9 to both sides of above equation , we get

x+9-9 = 0-9

x+0 = -9

x = -9

hence, the solution of x²-18x= 9x is {0,-9}.