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tensa zangetsu [6.8K]
3 years ago
11

Simplify

Mathematics
1 answer:
atroni [7]3 years ago
4 0

Answer:

<h2>3x² - 9x + 8</h2>

Step-by-step explanation:

(2x^2-5x+3)-(-x^2+4x-5)\\\\=2x^2-5x+3-(-x^2)-4x-(-5)\\\\=2x^2-5x+3+x^2-4x+5\qquad\text{combine like terms}\\\\=(2x^2+x^2)+(-5x-4x)+(3+5)\\\\=3x^2-9x+8

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Answer:

A is a solution because it is in the shaded area.

Step-by-step explanation:

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4 years ago
How to solve 2/3:x::4.5:2 and 2/3%:1/5::50:x
solong [7]

A) x = 0.296

B) x= 15

Step-by-step explanation:

Step 1:

(2/3) : x :: 4.5 :2

By using expansion method,

(2/3) × 2 = 4.5 x

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Step 2:

(2/3) : (1/5) :: 50 :x

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3 years ago
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Which of the following sequences can be described as an arithmetic sequence?
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We know that,

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