The difference 9

The difference of two numbers is 20 and their product is 56.25 times their difference. Find the LCM of the numbers.

Correct answer:

x =  225

Step-by-step explanation:

ab=20 a b=56.25 20=1125  a (a20)=56.25 20  a (a20)=56.25 20 a220a1125=0  p=1;q=20;r=1125 D=q24pr=20241(1125)=4900 D>0  a1,2=2pq±D=220±4900 a1,2=220±70 a1,2=10±35 a1=45 a2=25  a=a1=45 b=a20=4520=25  45=325 25=52 LCM(45,25)=3252=225  x=LCM(a,b)=LCM(45,25)=225

Our quadratic equation calculator calculates it.




Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you want to calculate the least common multiple of two or more numbers?
Are you looking for help with calculating roots of a quadratic equation?
Do you have a linear equation or system of equations and are looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: