1 answer:
Answer:
A. x² - x
General Formulas and Concepts:
<u>Pre-Algebra</u>
<u>Algebra I</u>
- Terms/Coefficients/Degrees
- Expand by FOIL (First Outside Inside Last)
<u>Geometry</u>
- Area of a Rectangle: A = lw
Step-by-step explanation:
<u>Step 1: Define</u>
<em>l</em> = x
<em>w</em> = x - 1
<u>Step 2: Find </u><em><u>A</u></em>
- Substitute [AR]: A = x(x - 1)
- Distribute <em>x</em>: A = x² - x
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First, you need to substitute the value of x in all of the x spots.
2x+3
2(3)+3. Us PEMDAS to solve the problem.
6+3
9
Answer:
its the lastone
Step-by-step explanation:
Here,
2(d - 10) = 18
d = ?
Now,
2(d - 10) = 18
or, 2d - 20 = 18
or, 2d = 18 + 20
or, 2d = 38
◆ d = 19
I hope it's help you...
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Involving the second and no higher power of an unknown quantity or variable.
Answer:
7
Explanation:
−
2
x
+
10
=
−
4
take 10 from both sides
−
2
x
=
−
14
divide both sides by -2 to find x
x
=
7
Step-by-step explanation:
