Question

Simplify the expression to a polynomial in standard form:
(x + 3)(2x" + 3x + 7)

Answer 1

• 2x³ + 9x² + 16x + 21

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Given expression:

• (x + 3)(2x² + 3x + 7)

Distribute and simplify:

• (x + 3)(2x² + 3x + 7) = Given
• x(2x²) + x(3x) + 7x + 3(2x²) + 3(3x) + 21 = Distribute
• 2x³ + 3x² + 7x + 6x² + 9x + 21 = Collect like terms
• 2x³ + 9x² + 16x + 21 Answer