Powerful quadratics

Source: nrich
Find all real solutions to

Show answer

If you enjoyed this puzzle, check out Sunday Afternoon Maths LV,
puzzles about indices, or a random puzzle.


Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles


irreducible numbers triangle numbers balancing squares angles integration sums money symmetry numbers pascal's triangle the only crossnumber planes rectangles books polygons rugby triangles 2d shapes arrows crossnumbers averages complex numbers volume indices integers colouring multiplication lines wordplay calculus chocolate cards digits hexagons partitions palindromes area products graphs circles dominos speed probability logic number star numbers advent odd numbers clocks spheres taxicab geometry factorials games surds scales mean sum to infinity digital clocks elections means differentiation chalkdust crossnumber tiling remainders parabolas algebra cryptic clues christmas fractions median trigonometry factors multiples range geometry division chess coins perfect numbers floors dates grids crosswords perimeter unit fractions dodecagons doubling quadratics shape cryptic crossnumbers menace 3d shapes coordinates time people maths regular shapes sequences bases routes addition folding tube maps shapes dice probabilty square numbers functions proportion square roots sport ave crossnumber gerrymandering percentages ellipses cube numbers prime numbers


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020