Specialist2024 Exam 1 · Q2Tech-free3 marks

Direct proof that an expression is even

Prove that if $x$ is an odd integer then $2x^2 - 3x - 7$ is even, using a direct proof.

3 marks

Hints, answer checking and worked solutions come with a Season Pass.

Specialist2024 Exam 1 · Q2Tech-free3 marks

Prove that if $x$ is an odd integer then $2x^2 - 3x - 7$ is even, using a direct proof.

3 marks

Hints, answer checking and worked solutions come with a Season Pass.