Nenaziz6akaLa4daysmi
Nenaziz6akaLa4daysmi Nenaziz6akaLa4daysmi
  • 23-12-2016
  • Mathematics
contestada

What are the solutions to the following system of equations?
y = x2 + 3x − 7
3x − y = −2

(3, 11) and (−3, −7)
(11, 3) and (−3, −7)
(3, 11) and (−7, −3)
No real solutions

Respuesta :

Lampa20
Lampa20 Lampa20
  • 28-12-2016
we will express second equation in first.

y = 3x + 2
after that we get:

3x + 2 = x^2 + 3x - 7
x^2 -9 = 0
x^2 = 9
x1 = 3
x2 = -3

y1 = 3*3+2 = 11
y2 = -3*3 + 2 = -7

we get pairs:
(3,11) and (-3,-7)

Answer is first option.
Answer Link
poap12002 poap12002
  • 07-10-2018

the answer to this question is (3,11) and (-3,-7)

Answer Link

Otras preguntas

Please help me with this Math question.Each win is worth 3 points.Each draw is worth 1 point.Each lose is worth 0 points.Is 33 correct answer?​
A carpenter used a piece of wood 11 feet, 6 inches long to make three shelves of equal length. What is the length of each shelf?
pls help me its algebra natoina- q1 is 13b- q3 is 21.5c- iqr is 9d- no outliers
Disadvantages of being an ill tempered entrepreneur
social inequality in sub saharan africa
Work out 4 3/5 - 2 2/5 Give your answer as a mixed number in its simplest form. ​
Explain what nuclear medicine technologists and magnetic resonance technologists have in common.
help me with this math question please I'm giving away brainliests ​
PLEASE HELP WILL MARK AS BRAINLIST Soon after arriving at Jamestown, the colonists were attacked by the Algonquian natives. Within a month, the colonists built
4. If seismographs showed a specific region as earthquake prone, what proposed solutions could lessen the damage of potential earthquakes? (Describe at least tw