Question Factor the expression 4(30−17j) Evaluate 120−68jSolution 4(30−17j) Show Solution Find the roots j=1730Alternative Form j≈1.764706 Evaluate 120−68jTo find the roots of the expression,set the expression equal to 0 120−68j=0Move the constant to the right-hand side and change its sign −68j=0−120Removing 0 doesn't change the value,so remove it from the expression −68j=−120Change the signs on both sides of the equation 68j=120Divide both sides 6868j=68120Divide the numbers j=68120Solution j=1730Alternative Form j≈1.764706 Show Solution