jaredlewq jaredlewq

25-07-2018
Mathematics

contestada

If a-b= 3 and[tex] a^{2}-b^{2} [/tex]=33, find the value of a+b.

Respuesta :

AnnaBooks18 AnnaBooks18

25-07-2018

a=x b=y
[tex] {x}^{2} - {y}^{2} = 33 \\ (x - y) \times (x + y) = 33 \\ 3 \times (x + y) = 33 \\ x + y = 33 \div 3 \\ x + y = 11[/tex]
You only have to remember
[tex] {x}^{2} - {y}^{2} = (x + y) \times (x - y)[/tex]
since it's a rule

Answer Link

Otras preguntas

What is the midpoint of the line segment with endpoints (-1,-6) and (-3,4)

in this passage what is the speakers relationship with the englosh language ?

Read the two sentences. He completed his assignment. Then he submitted it to his teacher. Which sentence combines the two sentences using a past particle? A -

Con has two credit cardsU and V. card U has a balance of 414.55 card V has a balance of $751.81 the minimum monthly payment on card U is 2.82% of the balance an

Can someone explain ?

The best option for a donor organ would be _____. a deceased donor a family member an artificial organ an identical twin

What is the lateral surface area of a cube with side length 9 cm?

In what 2 regions is most of Canada's farmingdone ?

Hitler focused on the Rhineland and the sundentenland and primarily because

Help me plssssssssssssss You will get 40 points