WBBSEClass XMathematicsQuadratic Equation With One Variable03 Mark2022 Easy

QQuestion

Form the quadratic equation whose roots are −4 and 3.

Exam-ready answer 03 Mark

Answer

Sum of roots = −4 + 3 = −1

Product of roots = (−4) × 3 = −12

Standard monic quadratic: x² − (sum)x + (product) = 0

⇒ x² − (−1)x + (−12) = 0

⇒ x² + x − 12 = 0

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