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Rufina [12.5K]
3 years ago
5

Simplify the algebraic expression: 7x2 + 6x – 9x – 6x2 + 15. A) x2 + 15x + 15 B) x2 – 3x + 15 C) 13x2 + 3x + 15 D) x4 – 3x + 15

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

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>B. x² - 3x + 15</em>

▹ Step-by-Step Explanation

7x² + 6x - 9x - 6x² + 15

<u>Collect like terms</u>

x² + 6x - 9x + 15

<u>Subtract</u>

x² - 3x + 15

<u>Final Answer</u>

x² - 3x + 15

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

lapo4ka [179]3 years ago
4 0

Answer:

B) x^2-3x+15

Step-by-step explanation:

7x^2+6x-9x-6x^2+15=\\7x^2-6x^2+6x-9x+15=\\x^2+6x-9x+15=\\x^2-3x+15

A) x^2+15x+15

B) x^2-3x+15

C) 13x^2 + 3x + 15

D) x^4-3x + 15

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