polynomial equation

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

2 practice marks

Original practice question

Solve $2 m^{2} + 10 m + 8 = 0$.

Worked explanation

• Factor the polynomial

  \[2 x^{2} + 10 x + 8 = \left(x + 1\right) \left(2 x + 8\right)\]

• Set each factor to zero

  \[x = -4, x = -1\]

[-4, -1]

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