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

what is the fastest animal in the world?
Select the best way to clarify or add an example to a sentence. A Use dashes. B Use commas to change the meaning of the sentence. C Rewrite the sentence. D Use
What type of animals live in the grassland?
if x=y and y=2 then 3x=
Who ends up being the most kinglike man in 'the hobbit'
12-2x=2(x+1). solve for x
Definition of gradual structures
What is the difference between assignment problems and transportation problems
1. 2f + 10 as distributive property. A. f(2 + 10) B. 2 (f + 5) C. 2(F + 10) Please Help It Is Urgent!
Which of these sentences uses correct parallel structure?<br />After school, Sheila either walks home or is taking a bus.<br />Every evening, Jenny