Question

find the sum of 5x² + x 2 and -2 x + 3x² + 4 , subtracted x - x² - 1​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

9x^2 - 2x + 7 OR 9x^2 - x + 5

Step-by-step explanation:

Case 1: Assuming first expression as 5x^2 + x +2 then

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

= 8x^2 - x + 6

Case 2: If first expression is 5x^2 + 2x then

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

= 8x^2 +4

Now subtracting

Case 1 :

8x^2 - x + 6 - (x - x^2 - 1)

= 8x^2 - x + 6 - x + x^2 + 1

=9x^2 - 2x + 7

Case 2:

8x^2 + 4 - (x - x^2 - 1)

= 8x^2 + 4 - x + x^2 +1

= 9x^2 - x + 5