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

Brenda typed a few lines on a word processor. She then pressed F7 key to proofread her file. What type of key did Brenda press? OA. function OB. alphabetic OC.
Given q(x)=3x and r(x)=x2. What is (r∘q)(2)? 36 10 12 24
Solve the expression in the sketch pad below. Show your work. 3 4 + 10. 10.
Mr.Sappleton Can best be described as
I need help please .....
A bowling ball weighing 25 N is dropped off the top of a 11 m tall building. What is the potential energy with respect to the ground when it has fallen half the
WILL MARK BRAINIEST!!! What is the best estimate for 38? 5.75 6.25 7.5 8.1
Where does the mass come from when growing an oak tree I need to write a paragraph so someone help me
why won’t anyone answer my questions
Which early explorer mistook the Canadian River for the Red River and abandoned his mission in 1820? A.Stephen H. Long B.John R. Bell C.Zebulon Pike D.James Wil