polynomial equation

Practise polynomial equation with an original VectorPaths question, worked explanation and related VCE Methods practice.

2 practice marks

Original practice question

Solve $x^{2} + x - 12 = 0$.

Worked explanation

• Factor the polynomial

  \[x^{2} + x - 12 = \left(x - 3\right) \left(x + 4\right)\]

• Set each factor to zero

  \[x = -4, x = 3\]

[-4, 3]

Original VectorPaths practice; not an official VCAA question or marking rubric.