ElGomez ElGomez
  • 14-05-2020
  • Mathematics
contestada

2^x+3^2y=11
2^x+1-3^y=1

Relax

Respuesta :

amna04352
amna04352 amna04352
  • 14-05-2020

Answer:

x = 1, y = 1

Step-by-step explanation:

Let A = 2^x

Let B = 3^y

A + B² = 11

A = 11 - B²

2A - B = 1

22 - 2B² - B = 1

2B² + B - 21 = 0

2B² + 7B - 6B - 21 = 0

B(2B + 7) - 3(2B + 7) = 0

(2B + 7)(B - 3) = 0

B = -7/2, B = 3

A = 11 - 3²

A = 2

2 = 2^x

x = 1

3^y = 3

y = 1

Answer Link

Otras preguntas

Why is life for Neely now in bleachers?
the esophagus connects the
The transporting or assistance of a family across the Mexico-U.S. border in exchange for money is called labor trafficking. True or False?
6 basic sentences using those words on the picture ^^
Destiny draws a circle with radius 14 centimeters. What is the circumference of Destiny's circle? Write your answers using pi. Show your work.​
PLEASE IT DUE IN 1 HR :(((((( During the month of February, Fabulous Feet Shoe Mart sold 30 pairs of red loafers. After an ad campaign to boost sales, they sold
Who were colonists that quickly assembled in response to the presence of British troops ? Privateers Redcoats Loyalists Minutemen
Please helppppp it’s due soon and I’m already failing my class!!!
Which one because I’m really bad at this
39) Solve the inequality: 4(x+5)≤116 A. x≤−51 B. x≤−40 C. x≤24 D. x≥24