Respuesta :

Answer: 3x^2+15x

Step-by-step explanation:

3x(x+5)

(x * x = x^2 and x * a number = a coefficent)

= 3x^2+15x

Answer: [tex]3x^{2}[/tex]+15x

Step-by-step explanation: 3x(x+5) then you distribute the 2x to all numbers in the parentheses leaving [tex]3x^{2}[/tex]+15x which is already simplified