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Tangle Trap Level 1 Hard maths puzzle involving algebra, exponent, linear equation and parentheses

Tangle Trap – Level 1 – Hard

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Topics: algebra, exponent, linear equation, parentheses, quadratic equations, variable

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

Enter the value of x into the Answer box.

x(x – 1) – 13x + (x + 7)² – 45 = x² + x(x – 1) – x + 4

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Additional instructions for Tangle Trap (Level 1, Hard)

Tangle Trap – Hard

Quadratic-style expansions: if the expression includes bracket × bracket, expand fully and methodically.

  • Multiply each term in the first bracket by each term in the second.
  • Write all resulting terms before combining anything.
  • Then collect like terms into a final simplified polynomial.

Common trap: forgetting one of the middle terms when expanding two brackets.

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