Question Simplify the expression 28d−3d2 Evaluate (4d×7)−3d2Solution 28d−3d2 Show Solution Factor the expression d(28−3d) Evaluate (4d×7)−3d2Multiply the terms 28d−3d2Rewrite the expression d×28−d×3dSolution d(28−3d) Show Solution Find the roots d1=0,d2=328Alternative Form d1=0,d2=9.3˙ Evaluate (4d×7)−(3d2)To find the roots of the expression,set the expression equal to 0 (4d×7)−(3d2)=0Multiply the terms 28d−(3d2)=0Multiply the terms 28d−3d2=0Factor the expression More Steps Evaluate 28d−3d2Rewrite the expression d×28−d×3dFactor out d from the expression d(28−3d) d(28−3d)=0When the product of factors equals 0,at least one factor is 0 d=028−3d=0Solve the equation for d More Steps Evaluate 28−3d=0Move the constant to the right-hand side and change its sign −3d=0−28Removing 0 doesn't change the value,so remove it from the expression −3d=−28Change the signs on both sides of the equation 3d=28Divide both sides 33d=328Divide the numbers d=328 d=0d=328Solution d1=0,d2=328Alternative Form d1=0,d2=9.3˙ Show Solution