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atroni [7]
3 years ago
11

Add the algebraic expressions x²+x-2 and 2x²-5x+7​

Mathematics
2 answers:
dalvyx [7]3 years ago
8 0

\large \mathfrak{Solution : }

  • {x}^{2}  + x - 2 + 2 {x}^{2}  - 5x + 7

  • {x}^{2}  + 2 {x}^{2}  + x - 5x - 2 + 7

  • 3 {x}^{2}  - 4x + 5

tigry1 [53]3 years ago
3 0

Answer:

3x^2-4x+5

Step-by-step explanation:

x^2+x-2+2x^2-5x+7

<u>Group like terms:</u>

<u></u>x^2+2x^2+x-5x-2+7<u></u>

<u>Add similar elements:</u>

<u></u>x^2+2x^2<u></u>

=3x^{2}

<u>Add similar elements:</u>

<u></u>x-5x<u></u>

=-4x

3x^2-4x-2+7

<u>Add the numbers:</u>

<u />-2+7

=3x^2-4x+5

<h3 /><h3>~❃❃ OPEACEO❃❃~ </h3>
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Answer:

x = 2.25 y = 0.75

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he triangles below are similar. Triangle Y X Z. Side Y X is 6 centimeters, X Z is 7 centimeters, and Z Y is 3 centimeters. Trian
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