Question

what should be added to 1 + 2 x minus 3 x squared to get x square minus x minus 1​

Answer 1

Answer:

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Answer 2

Answer:

${4x }^{2} - 3x - 2$

Step-by-step explanation:

Your question:

$what \: should \: be \: added \: to \:$

$1 + 2x - 3 {x}^{2}$

$to \: get$

${x}^{2} - x - 1$

A to q

$( {x}^{2} - x - 1) - (1 + 2x - {3x}^{2} )$

${x}^{2} - x - 1 - 1 - 2x + {3x}^{2}$

${x}^{2} + {3x}^{2} - x - 2x - 1 - 1$

${4x}^{2} - 3x - 2$