Question

some one please help me with these questions please answer any that you know are correct i cant risk any wrong answers


1. Add. (−5x ^4 +6x^2−43)+(6x^4−x^2+12x+12)
express the answer in standard form.
enter your answer in the box

2. ADD (x^3-2x^2+4)+(2x^3 + x^2−2)

Express the answer in standard form.
Enter your answer in the box.

3.ADD (1+7x^3-x^2) + (x^3+2+2x^2)

express the answer in standard form .
enter your answer in the box

Answer 1

Answer: 1) x⁴ + 5x² + 12x - 31

              2) 3x³  -  x²  + 2

              3) 8x³ + x² + 3

Step-by-step explanation:

1) Line up like terms and add the coefficients of each term

 -5x⁴ + 6x²          - 43

+ 6x⁴ -  1x² + 12x + 12

    x⁴ + 5x² + 12x - 31

2) Line up like terms and add the coefficients of each term

   1x³ - 2x² + 4

+ 2x³ + 1x²  - 2

  3x³  -  x²  + 2

3) Line up like terms and add the coefficients of each term

   7x³  - 1x² + 1

+ 1x³ + 2x² + 2

   8x³ + x² + 3