Algebra-1

To expand the expression (x + 4)(x² + 2x +1), we can use the distributive property and multiply each term of the first expression by each term of the second expression:

(x + 4)(x² + 2x +1) = x * (x² + 2x +1) + 4 * (x² + 2x +1)

Expanding further:

= x³ + 2x² + x + 4x² + 8x +4

Combining like terms:

= x³ + (2

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