Subjects algebra

Polynomial Subtraction

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1. **State the problem:** We need to subtract the polynomial \((5x^2 - 7x - 14)\) from \((9x^2 - 7x + 13)\). 2. **Write the expression:** $$ (9x^2 - 7x + 13) - (5x^2 - 7x - 14) $$ 3. **Distribute the minus sign to the second polynomial:** $$ 9x^2 - 7x + 13 - 5x^2 + 7x + 14 $$ 4. **Combine like terms:** - Combine the \(x^2\) terms: \(9x^2 - 5x^2 = 4x^2\) - Combine the \(x\) terms: \(-7x + 7x = 0\) - Combine the constants: \(13 + 14 = 27\) 5. **Write the simplified polynomial:** $$ 4x^2 + 27 $$ **Final answer:** \(4x^2 + 27\)