Answer : X^2+6x+9
(X+3)(x+3)
Answer:
One solution
Step-by-step explanation:
Let us first <u>expand</u> the left side of the equation to rid of the parenthesis:

Now let us <u>isolate</u> the variable to sove for x:

Therefore, x=
. As you can see, there is just one solution.
<em>I hope this helps! Please let me know if you have any further questions :)</em>
Answer:
First solve the equation:
6x^2 + 8x -28 = 2x^2 + 4
=> 6x^2 - 2x^2 + 8x - 28 -4 = 0 => 4x^2 + 8x - 32 = 0
Extract common factor 4:
=> 4[x^2 + 2x - 8] = 0
Now factor the polynomial:
4(x + 4) (x - 2) = 0
=> the solutions are x + 4 = 0 => x = -4, and x - 2 = 0 => x = 2.
So the answer is the option B: 4(x + 4)(x - 2); {-4, 2}
HOPE THIS HELPS! :D
Answer:
18%
Step-by-step explanation:
Since the original price is $78 then this is the original 100% of the price. The new price will be marked up x percent and be $92. To find the new price set up a proportion with these values:

Solve for the original price by cross multiplying numerator with denominator.
x(78) = 92(100)
78x = 9200
x= 117.9 = 118%
This is 18% more or over the original price.
Answer:
y=7y=7y=7
Step-by-step explanation:
How to solve your question
Your question is
8+=63
8y+y=638y+y=638y+y=63
Solve
1
Combine like terms
8+=63
8y+y=63{\color{#c92786}{8y}}+{\color{#c92786}{y}}=638y+y=63
9=63
9y=63{\color{#c92786}{9y}}=639y=63
2
Divide both sides of the equation by the same term
3
Simplify
Solution
=7
y=7y=7y=7