Question What is 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: Correct Work: What should she do in the future to prevent this error?

To avoid error, we must focus on the exponent part and the like terms. Correct Work: 6x³ + 4x- 8 What is addition? 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; https://brainly.com/question/10413253 #SPJ1 Reply

error, we must focus on theexponentpart and thelike terms. CorrectWork: 6x³ + 4x- 8## What is addition?

additionis one of themathematicaloperations. Theadditionof two numbers results in the total amount of thecombinedvalue.sumof x³ + 5x²-7 and 5x²-3x²+2x-1Danielle’sWork:Danielle’sMistake:termhas cubicpower.like termsare present in thesolution.CorrectWork:error, we must focus on theexponentpart and thelike terms.equations;