Algebra-1

Step 1: Combine like terms.
The terms with a⁴ are 2a⁴, and -a⁴. Adding their coefficients, we get 2a⁴ - a⁴ = a⁴.

The terms with b³ are 3b³, 4b³ and -2b³. Adding their coefficients, we get 3

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