carinob308 carinob308
  • 02-04-2020
  • Mathematics
contestada

Solve the system of equations:
y = x + 2
y = x2 + 5x + 6
HELP PLZ

Respuesta :

Officialalehpeter
Officialalehpeter Officialalehpeter
  • 02-04-2020

Answer:

x=2(twice)

y=0(twice)

Step-by-step explanation:

This question can be solved using substitution method

So let's solve

y=x+2....(1)

y=x2+5x+6....(2)

Substitute (1) into(2)

X+2=x2+5x+6

Collect like terms

X2+5x-x+6-2=0

X2+4x+4=0

X2+2x+2x+4=0

X(x+2)+2(x+2)=0

(X+2)(x+2)=0

X+2=0

Substrate 2 from both sides

X=-2

X+2=0

X=-2

Let's substitute the value of x into (1)

y=x+2

y=-2+2

Y=0(twice)

Answer Link

Otras preguntas

Find the gcd of 30,45,75
which of the at eight o'clock, which of is the angle between the hour and the minute hands
round 27 to 1dp is it 28?​
What is meant by socialization​
Fill in the blanks: (i) If two angles are complementary, then the sum of their measures is _______. (ii) If two angles are supplementary, then the sum of their
–Hola, ¿cómo te llamas? –Soy Violeta. –Encantada. –Igualmente. –¿________?
if each quadrilateral below is a square, find the missing measures. please help :(
If a constant force F=2 kg.at acts on a body of mass 4 kg for 3 seconds to change its velocity from 1.3 m/sec to (v) then (v) =
Pretest: Unit 3 Question 8 of 32 When you drop a penny off the roof of a building, it takes 16 seconds to reach the ground. How high is the roof? A. 980.9 m B.
Define gauge pressure