Please help
find the root(values of x when the expression is equal to zero)
3x^2+21x=0
3x^2+21x = 0
3x(x+7) = 0
if the product of factors is zero, then one of the factors must be zero. So, when is any of the factors zero?
find the root(values of x when the expression is equal to zero)
3x^2+21x=0
3x(x+7) = 0
if the product of factors is zero, then one of the factors must be zero. So, when is any of the factors zero?