Tangle Trap – Level 1 – Hard

Other Puzzles

Chain Reaction – Level 1 – Easy

Chain Reaction – Level 1 – Easy

Chain Reaction – Level 1 – Hard

Chain Reaction – Level 1 – Hard

Chain Reaction – Level 1 – Medium

Chain Reaction – Level 1 – Medium

Chain Reaction – Level 1 – Easy

Chain Reaction – Level 1 – Hard

Chain Reaction – Level 1 – Medium

Chain Reaction – Level 1 – Medium

Chain Reaction – Level 1 – Medium

Chain Reaction – Level 1 – Medium

Chain Reaction – Level 1 – Medium

Chain Reaction – Level 1 – Medium

Chain Reaction – Level 1 – Medium

Code Breaker – Level 1 – Easy

Code Breaker – Level 1 – Easy

Code Breaker – Level 1 – Hard

Code Breaker – Level 1 – Hard

Code Breaker – Level 1 – Medium

Home » Tangle Trap – Level 1 – Hard

Untangle the following equation, to find the value of x.

Enter the value of x into the Answer box.

-x² + x(x – 7) – 6x + (x – 3)(x + 4) + (x + 3)² – 6 = x² + 3x + (x – 3)(x + 5) + 6

Your Workings for Tangle Trap

Use this box for your working out / notes:

Your answer:

Reveal the Answer

Additional instructions for Tangle Trap (Level 1, Hard)

Tangle Trap – Hard

Proof-check finish: if your final answer doesn’t “feel” right, verify equivalence.

Pick an easy value like x=0, x=1, and x=2.
Evaluate the original expression and your simplified expression.
The outputs must match every time.

If they don’t match: the error is almost always in a bracket expansion or a missed sign flip.

Full help: Tangle Trap

You must be logged in to view this answer.