dani04903 dani04903
  • 04-04-2020
  • Mathematics
contestada

Solve 2x^2 + 6x = 36 by graphing the related function.

Respuesta :

austyngranberry
austyngranberry austyngranberry
  • 04-04-2020
Sorry I can’t help but yea
Answer Link
Officialalehpeter
Officialalehpeter Officialalehpeter
  • 04-04-2020

Answer: 3 or -6

Step-by-step explanation:

2x2+6x=36

Collect like terms

2x2+6x-36=0

Divide all by 2

X2+3x-18=0

Factorise

Factors of -18 that will give +3 is +6&-3

X2+6x-3x-18=0

X(x+6)-3(x+6)=0

(X-3)(x+6)=0

X-3=0

X=3

X+6=0

X= -6

X= 3 or -6

Answer Link

Otras preguntas

Find the value of x. Round your answer to the nearest tenth.
Blue Ray's computer sales totaled $59,500 last month. She receives a commission rate of 15% on all sales. What commission did she earn? *
Do you think that aliens exist?
Which are the reactants in the following reaction? 2 Mg + O2 ---> 2MgO a)Mg and O b)Mg and MgO c)MgO d)O and MgO
32/36 in slimplest form
Marilyn is playing a game where she draws a slip of paper with the words "Rock, Paper, Scissors" written on each slip from a hat. She then flips a coin. She pre
Dara has to solve 35 math problems for homework. She has completed 14 of them.what fraction of the problems does she have left to do?
31 points! Find x. A: 8 B: √8 C: 16 D: 4√2
why was marbury v. madison a lankmark court ruling?
WILL MARK BRAINLIESTUsing the fact that pressure is defined as force : area, what is the pressureexerted by 1 book in N/m??​