To avoid error, we must focus on the exponent part and the like terms. Correct Work: 6x³ + 4x- 8
The addition is one of the mathematical operations. The addition of two numbers results in the total amount of the combined value.
We have to find the sum of x³ + 5x²-7 and 5x²-3x²+2x-1
Danielle's Work:
(x³ + 5x² - 7) + (5x³ - 3x² + 2x - 1)
x³ + 5x³+5x²-3x²+2x-7-1
6x + 2x + 2x- 8
Danielle's Mistake:
In the last step the first term has cubic power.
We can solve it further as the like terms are present in the solution.
Correct Work:
6x³ + 2x + 2x- 8
6x³ + 4x- 8
To avoid error, we must focus on the exponent part and the like terms.
Learn more about equations;
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