Me. Erickson did the following problem. She noticed she made a big mistake! What mistake did Ms. Erickson make while solving the problem? (6x^3+4x-10)+(-3x^2+2x+8)=3x^3+6x-3

Her mistakes are;

She added unlike terms and and gave the answer

She added -10 and 8 and gave the answer -3

Step-by-step explanation:

let us try to find her mistake

We have two algebric expressions to add them

→

→

We must add the like terms

The like terms are:

→ 4x and 2x, -10 and 8

→

→

So Let us add the expression to find her mistakes

The correct answer is:

By comparing our answer with her answer her mistakes are:

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation: