hewhomustnotbenamed1
hewhomustnotbenamed1 hewhomustnotbenamed1
  • 25-04-2018
  • Mathematics
contestada

Find two consecutive even integers such that the square of the smaller is 10 more than the larger.

Respuesta :

altavistard
altavistard altavistard
  • 05-05-2018
Let the two consecutive even integers be x and x+2.

Then x^2 = (x+2) + 10

Simplifying, x^2-x -2 - 10 = 0, or x^2 - x - 12 = 0.  Factoring,

(x-4)(x+3) = 0.  Solving for x:  x=4 and x= -3.

If the first number is x = 4, then the second is x+2=4+2=6.

But wait!  If the first number is -3, then the second is x+2 = -3+2 = -1.

Do NOT accept these answers until after you've checked them!

Answer Link

Otras preguntas

"which meta tag is used to configure display for mobile devices?"
What did the aztecs do to master their watery envirmonet?
John has taken out a loan for college. He started paying off the loan with a first payment of $100. Each month he pays, he wants to pay back 1.1 times the amoun
how can you check any division problem to get your answer
Is a staphylococcus cell prokaryotic or eukaryotic?
A glacier can travel over the surface of earth and reshape it. the chart describes three things a glacier can do.which terms best describe these glacial actions
How did many african cultures lose their fittest member??
What words can be spelled with the letters d u i n s t b?
Rebecca goes for a ride in owen's car, even though he has told her that the car's brakes frequently fail. in case of any injuries due to this defect, rebecca wo
The length of a rectangle is 5/2 units greater than twice its width. If its width is w, which expression gives the perimeter of the rectangle in terms of w? 1.