helppp ive tried 0 and it wasnt right7x(x+1.8)=0

7x(x + 1.8) = 0...distribute thru the parenthesis
7x^2 + 12.6x = 0
x(7x + 12.6) = 0

x = 0

7x + 12.6 = 0
7x = -12.6
x = -12.6/7
x = -1.8

so x = 0 or x = -1.8