Por favor... É urgente!x - 2y = 0 x + y² = 35 Vlw. Created by Dark Ghost. ciencias-e-matematica-en - matematica-en

{ x - 2y = 0 (-1) {x + y² = 35 {-x + 2y = 0 { x + y² = 35------------------ //////y² + 2y = 35 y² + 2y - 35 = 0 delta--> 4+140=144 Vdelta---> V144 = 12 y' = (-2+12)/2 = 10/2 = 5 y"= (-2-12)/2 = -14/2 = -7 x - 2y = 0 x= 2.5 = 10 x= 2.(-7) = -14 Resposta: para x = 10 , y = 5 para x = -14 , y = -700camberos4 years agof(x) = ax² + bx + c monte um sistema: f(0) = c = 5 (a million) f(a million) = a + b + c = 3 (2) f(-a million) = a - b + c = 9 (3) a + b = 3 - 5 = -2 a - b = 9 - 5 = 4 2a = 2 a = a million b = a - 4 = a million - 4 = -3 f(x) = x² -3x + 5 f(2) = 4 - 6 + 5 = 3 alternativa c)00Louis XVLv 78 years agox = 2y 2y + y² = 35 y² + 2y - 35 = 0 d² = 4 + 140 = 144 d = 12 y1 = (-2 + 12)/2 = 5 --> x1 = 2y1 = 10 y2 = (-2 - 12)/2 = -7 --> x2 = 2y2 = -14 pronto00Anonymous8 years agox+y² = 35x-2y = 0um menos o outroy² + 2y - 35 = 0y' = -7y = 5x-2.(5) = 0x - 10 = 0x' = 10x-2.(-7) = 0x'' = -1400Still have questions? Get your answers by asking now.Ask QuestionTrending QuestionsTrending QuestionsConvert the whole number to a percent: 58?19 answersThe sum of three consecutive integers is 36. What is the largest of the three integers? The correct answer is 13.?11 answersHelp with this math question?8 answersHow do you solve this math word problem? PLEASE HELP ME AND EXPLAIN STEP BY STEP!!!?9 answersAm I right?6 answersAnswer QuestionsAnswer QuestionsAlgebra help please?Statistics and Probability?What's the square root of -1?Find the general indefinite integral. (Use C for the constant of integration.) ∫sec(t)(2 sec(t) + 7 tan(t)) dt?Is this the last question?Terms・Privacy・AdChoices・RSS・HelpAbout Answers・Community Guidelines・Leaderboard・Knowledge Partners・Points & LevelsSend Feedback・International Sites

Resolvam o seguinte sistema de equação do 2o grau?

Dark Ghost @Dark Ghost

May 2021 1 133 Report

Resolvam o seguinte sistema de equação do 2o grau?

Por favor... É urgente!

x - 2y = 0

x + y² = 35

Vlw

Ciências e Matemática / Matemática

Answers & Comments

Wilma

Verified answer

{ x - 2y = 0 (-1)

{x + y² = 35

{-x + 2y = 0

{ x + y² = 35

------------------

//////y² + 2y = 35

y² + 2y - 35 = 0

delta--> 4+140=144

Vdelta---> V144 = 12

y' = (-2+12)/2 = 10/2 = 5

y"= (-2-12)/2 = -14/2 = -7

x - 2y = 0

x= 2.5 = 10

x= 2.(-7) = -14

Resposta:

para x = 10 , y = 5

para x = -14 , y = -7

camberos

4 years ago

f(x) = ax² + bx + c monte um sistema: f(0) = c = 5 (a million) f(a million) = a + b + c = 3 (2) f(-a million) = a - b + c = 9 (3) a + b = 3 - 5 = -2 a - b = 9 - 5 = 4 2a = 2 a = a million b = a - 4 = a million - 4 = -3 f(x) = x² -3x + 5 f(2) = 4 - 6 + 5 = 3 alternativa c)

Louis XV

Lv 7

8 years ago

x = 2y

2y + y² = 35

y² + 2y - 35 = 0

d² = 4 + 140 = 144

d = 12

y1 = (-2 + 12)/2 = 5 --> x1 = 2y1 = 10

y2 = (-2 - 12)/2 = -7 --> x2 = 2y2 = -14

pronto

Anonymous

8 years ago

x+y² = 35

x-2y = 0

um menos o outro

y² + 2y - 35 = 0

y' = -7

y = 5

x-2.(5) = 0

x - 10 = 0

x' = 10

x-2.(-7) = 0

x'' = -14

Still have questions? Get your answers by asking now.

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