ColtraneE755640 ColtraneE755640
  • 03-11-2022
  • Mathematics
contestada

Which of the following are solutions to the equation below? Check all that apply. x^2 + 4x-9 = x+1

Which of the following are solutions to the equation below Check all that apply x2 4x9 x1 class=

Respuesta :

AmielP96688 AmielP96688
  • 03-11-2022

We hve the equation

[tex]x^2+4x-9=x+1[/tex]

We are to find the value of x

Solving the equation we have

[tex]\begin{gathered} x^2+4x-9=x+1 \\ x^2+4x-x-9-1=0 \\ x^2+3x-10=0 \end{gathered}[/tex]

Factorising the equation further

[tex]\begin{gathered} x^2+3x-10=0 \\ x^2+5x-2x-10=0 \\ x(x+5)-2(x+5)=0 \\ (x+5)(x-2)=0 \\ x+5=0,x-2=0 \\ x=-5,x=2 \end{gathered}[/tex]

Therefore the solution to the equation is -5 and 2

Answer Link

Otras preguntas

Why do people go on pilgremages?
when andrew johnson was in the office were there any wars going on? if so,wich one?
how does geography affect Philippines history?
Which words in the sentence make up the appositive phrase? Gary Jackson, the tallest boy on the team, made the game-winning shot.
what are some similarities for weathering and erosion
What are 2 ways that being near rivers helped civilizations to survive?
Ammonia is released from dead plants by (A) denitrifying bacteria. (B) nitrogen-fixing bacteria. (C) bacteria of decay. (D) nitrifying bacteria. (E) none of the
what is the difference between mechanical waves and electromagnetic waves?
Why did the vinegar erupt when I put the baking soda ?
how does geography affect Philippines history?