Question Simplify the expression 40h3+21h4 Evaluate 5h3×8+3h4×7Multiply the terms 40h3+3h4×7Solution 40h3+21h4 Show Solution Factor the expression h3(40+21h) Evaluate 5h3×8+3h4×7Multiply the terms 40h3+3h4×7Multiply the terms 40h3+21h4Rewrite the expression h3×40+h3×21hSolution h3(40+21h) Show Solution Find the roots h1=−2140,h2=0Alternative Form h1=−1.9˙04761˙,h2=0 Evaluate 5h3×8+3h4×7To find the roots of the expression,set the expression equal to 0 5h3×8+3h4×7=0Multiply the terms 40h3+3h4×7=0Multiply the terms 40h3+21h4=0Factor the expression h3(40+21h)=0Separate the equation into 2 possible cases h3=040+21h=0The only way a power can be 0 is when the base equals 0 h=040+21h=0Solve the equation More Steps Evaluate 40+21h=0Move the constant to the right-hand side and change its sign 21h=0−40Removing 0 doesn't change the value,so remove it from the expression 21h=−40Divide both sides 2121h=21−40Divide the numbers h=21−40Use b−a=−ba=−ba to rewrite the fraction h=−2140 h=0h=−2140Solution h1=−2140,h2=0Alternative Form h1=−1.9˙04761˙,h2=0 Show Solution