X=1/12 .........................................
Answer: X=42
Step-by-step explanation:
42/-6=-7
-7=-7
Answer:
x^3+3x^2+9x+27
Step-by-step explanation:

_____
The factoring of the difference of squares is used (twice):
a² -b² = (a -b)(a +b)
This formula means that a(n) for n, when n is the term number, will give you the term. Meaning, we just have to plug in 55 for n.
a(55) = -1 + 3(55 - 1)
a(55) = -1 + 3 * 54
a(55) = -1 + 162
a(55) = 161
<h2>
<u>A</u><u> </u><u>N</u><u> </u><u>S</u><u> </u><u>W</u><u> </u><u>E</u><u> </u><u>R</u><u> </u><u>:</u></h2>
- Perimeter of rectangle = 40 inches
- Length of rectangle = 15 inches
Let the required Breadth of rectangle be 'x' inches
Perimeter of rectangle is calculated by the given below formula :
- Perimeter = 2(Length + Breadth)
Now, substitute the given values in above formula :
→ 40 = 2(15 + x)
<u>Hence</u><u>,</u><u>the</u><u> </u><u>optio</u><u>n</u><u> </u><u>(</u><u>d</u><u>)</u><u> </u><u>2</u><u>(</u><u>x</u><u> </u><u>+</u><u> </u><u>1</u><u>5</u><u>)</u><u> </u><u>=</u><u> </u><u>4</u><u>0</u><u> </u><u>is</u><u> </u><u>the</u><u> </u><u>corre</u><u>ct</u><u> </u><u>answer</u><u>.</u>