Sum and product

The sum of the real numbers x and y is 12. Their difference is 8. What is the value of xy?

Correct answer:

w =  20

Step-by-step explanation:

x+y=12 xy=8  x+y=12 xy=8  x=10 y=2  w=x y=10 2=20



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



avatar




Tips to related online calculators
Do you have a system of equations and looking for calculator system of linear equations?

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

Related math problems and questions:

  • The sum 15
    lines The sum of the real numbers x and y is 24. Their difference is 12. What is the value of xy?
  • The sum 9
    numbers The sum of two integers is 4. Their difference is 8. What are this two integers?
  • Grandson and granddad
    vnuk_dedo Grandson with grandpa, they counted how many years have together. Their product is 365. How many years is the sum of their years?
  • The difference
    eq2 The difference of two numbers is 1375. If their exact quotient is 12. Find the two numbers
  • The difference 2
    numbs The difference between the two numbers is 25. The smaller number is 1/6th of the larger number. What is the value of the smaller number?
  • The sum 16
    eq2_fx The sum of A and B is 36. The difference of A & B is 8. find the larger number of A.
  • Product
    multiplicationchart The sum and the product of three integers are 6. Write largest of them.
  • Sum and ratio
    eq1 The sum and ratio of two numbers is equal to 10. Which numbers are they?
  • Find two
    eq222 Find two consecutive natural numbers whose product is 1 larger than their sum. Searched numbers expressed by a fraction whose numerator is the difference between these numbers and the denominator is their sum.
  • Product of the sum and difference
    numbers2 Calculate the product of the sum and difference of numbers -7 and -2.
  • Value 4
    fractal If 5/18=425, what is the value 13/18?
  • Three numbers
    numbers Find three numbers so that the second number is 4 times greater than the first and the third is lower by 5 than the second number. Their sum is 67.
  • ABS
    sphere_nice What is the value of ? ?
  • Complicated sum minus product
    plusminus What must be subtracted from the sum of 3/8 and 5/16 to get difference equal to the product of 5/8 and 3/16?
  • Three men
    GUYS Alex is half younger than Jan, which is one-third younger than George. The sum of their ages is 48. How are these three men old?
  • Sum or product
    dice What is the probability that two dice fall will have the sum 7 or product 12?
  • Two numbers
    third The sum of two numbers is 1. Identify this two numbers if you know that the half of first is equal to the third of second number.