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Illusion [34]
3 years ago
9

Simplify (4x^2 + 12x - 9) + (7x^2 - x + 3)

Mathematics
2 answers:
AVprozaik [17]3 years ago
5 0

Answer:

11x^2 + 11x - 6

Step-by-step explanation:

  1. <em>Remove</em> the parenthesese.
  2. <u>Add like terms</u>, 4x^2 and 7x^2.
  3. After that, <em>subtract</em> x from 12x, that's 11x.
  4. then<em> add</em> -9 and 3, and that's -6.

Then you're left with 11x^2 + 11x - 6

I hope this helps!

jasenka [17]3 years ago
3 0

Answer:

The correct answer is 11x²  + 11x - 6

Step-by-step explanation:

The given expression is,

(4x² + 12x - 9) + (7x² - x + 3)

<u>Simplify the given expression</u>

(4x² + 12x - 9) + (7x² - x + 3) = 4x² + 12x - 9 + 7x² - x + 3

= 4x² + 7x²  + 12x - x - 9 + 3

= 11x²  + 11x - 6

Therefore the simplified form of given expression is 11x²  + 11x - 6

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