Question

Some Help Please

Answer 1

y is equal to 2x^2 + 54 and it's also equal to 18 - 22x

Answer 2

therefore, we know that 2x^2 + 54 = 18 - 22x

agreed?

Answer 3

agree

Answer 4

now get the equation into standard form ax^2 + bx + c = 0

2x^2 + 54 = 18 - 22x

2x^2 + 54+22x = 18 - 22x+22x ... add 22x to both sides

2x^2 + 22x + 54 = 18

2x^2 + 22x + 54 - 18 = 18 - 18 ... Subtract 18 from both sides.

2x^2 + 22x + 36 = 0

Answer 5

from here you can factor or use the quadratic formula

Answer 6

alright im doing that

Answer 7

ok tell me what you get

Answer 8

Simplifying
2x2 + -22x + 36 = 0

Reorder the terms:
36 + -22x + 2x2 = 0

Solving
36 + -22x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(18 + -11x + x2) = 0

Factor a trinomial.
2((2 + -1x)(9 + -1x)) = 0

Ignore the factor 2.
Subproblem 1
Set the factor '(2 + -1x)' equal to zero and attempt to solve:

Simplifying
2 + -1x = 0

Solving
2 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + -2 + -1x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1x = 0 + -2
-1x = 0 + -2

Combine like terms: 0 + -2 = -2
-1x = -2

Divide each side by '-1'.
x = 2

Simplifying
x = 2
Subproblem 2
Set the factor '(9 + -1x)' equal to zero and attempt to solve:

Simplifying
9 + -1x = 0

Solving
9 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + -1x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -1x = 0 + -9
-1x = 0 + -9

Combine like terms: 0 + -9 = -9
-1x = -9

Divide each side by '-1'.
x = 9

Simplifying
x = 9
Solution
x = {2, 9}

Answer 9

it's not 2x^2 + -22x + 36 = 0

it's 2x^2 + 22x + 36 = 0

Answer 10

ooohhhh i see ok so if i've done my research correctly i shall get one moment

Answer 11

need to change a few things

Answer 12

Simplifying
2x2 + 22x + 36 = 0

Reorder the terms:
36 + 22x + 2x2 = 0

Solving
36 + 22x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(18 + 11x + x2) = 0

Factor a trinomial.
2((9 + x)(2 + x)) = 0

Ignore the factor 2.
Subproblem 1
Set the factor '(9 + x)' equal to zero and attempt to solve:

Simplifying
9 + x = 0

Solving
9 + x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + x = 0 + -9
x = 0 + -9

Combine like terms: 0 + -9 = -9
x = -9

Simplifying
x = -9
Subproblem 2
Set the factor '(2 + x)' equal to zero and attempt to solve:

Simplifying
2 + x = 0

Solving
2 + x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + -2 + x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + x = 0 + -2
x = 0 + -2

Combine like terms: 0 + -2 = -2
x = -2

Simplifying
x = -2
Solution
x = {-9, -2}

Answer 13

yes, x = -9 or x = -2

Answer 14

if x = -9, then y = ???

Answer 15

(-9,216)

Answer 16

good

Answer 17

and you do the same for x = -2

Answer 18

so my answer would be A

Answer 19

yes

Answer 20

May you assist me with others @jim_thompson5910

Answer 21

post a new question so things don't get cluttered

Answer 22

where it says "ask a question"