dani04903 dani04903

04-04-2020
Mathematics

contestada

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

Respuesta :

austyngranberry austyngranberry

04-04-2020

Sorry I can’t help but yea

Answer Link

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 an estimate of the equation 6n+3=2? Use a table

The area of the surface of the swimming pool is 210 square feet. what is the lenght d of the deep end (in feet)?

I am a number between 20 and 30. When you divide me into 6 equal groups, there is an even number in each group and 2 are left over. What number am i?

No puedo ir a la escuela. estoy _____. a. triste b. contenta c. ocupada d. enferma

the length of a rectangle is 4 units greater than its width, and the area of the rectangle can be expressed by the equation y=x2+4x. what is a reasonable domain

If 2x+5=8x then 12x=?

Which of the following is not true of correcting poor decisions? a. correcting a poor decision can be difficult. b. correcting a poor decision will allow you

Malloy solved the equation −5x − 16 = 8; his work is shown below. Identify the error and where it was made. −5x − 16 = 8 Step 1: −5x − 16 + 16 = 8

The purpose of King’s letter is to cause __________________ to fight ________________________.do you know the rest the sentence

how do you find the slope