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Gwar [14]
4 years ago
8

Simplify. (5x-2+3x^2)+(4x+3) Thank you:)

Mathematics
2 answers:
iogann1982 [59]4 years ago
6 0

Answer:

x^2 +9x +1

Step-by-step explanation:

(5x-2+3x^2)+(4x+3)

Writing in decreasing order so we can combine like terms

3x^2 +5x+4x-2+3

Add and subtract like terms

3x^2 +9x +1

coldgirl [10]4 years ago
6 0

Answer:

B  3x^2 + 9x + 1

Step-by-step explanation:

Good luck

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The length of a rectangle is 5ft longer than twice the width if the perimeter is 58 ft find the length and width of the rectangl
Travka [436]
----------------------------------
Define x :
----------------------------------
Let the width be x.
Width = x
Length = 2x + 5                // Length is 5ft longer than twice the width

----------------------------------
Formula for Perimeter :
----------------------------------
Perimeter = 2 (Length + Width)

----------------------------------
Find Width :
----------------------------------
58 = 2 ( 2x + 5 + x)         // Substitute Length and Width into formula
58 = 2 (3x + 5)                // Combine like terms
58 = 6x + 10                    // Apply distributive property
48 = 6x                            // Take away 10 from both sides
6x = 48                            // Switch sides. Make x the subject
x = 8                                // Divide by 6 on both sides

----------------------------------
Find Length and Width :
----------------------------------
Width = x = 8 ft
Length = 2x + 5 = 2(8) + 5 = 21 ft

--------------------------------------------------------------------
Answer: The length is 21 ft and the width is 8 ft.
--------------------------------------------------------------------

3 0
3 years ago
Read 2 more answers
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