Let's solve your equation step-by-step.
3x(x+9)=3x^2+27x
Step 1: Simplify both sides of the equation.
3x^2+27x=3x^2+27x
Step 2: Subtract 3x^2 from both sides.
3x^2+27x−3x^2=3x^2+27x−3x^2
27x=27x
Step 3: Subtract 27x from both sides.
27x−27x=27x−27x
0=0
Answer:
All real numbers are solutions.
