
A number that can't be simplified to remove a square root (or cube root etc). Examples: ? _2 (square root of 2) can't be simplified further so it is a surd ? _4 (square root of 4) CAN be simplified to 2, so it is NOT a surd
A number that can't be simplified to remove a square root (or cube root etc). Examples: ? _2 (square root of 2) can't be simplified further so it is a surd ? _4 (square root of 4) CAN be simplified to 2, so it is NOT a surd