The input below yields this output:
` sqrt( 3 a + a ^( 2) + 1 - a)` `=` ` sqrt( a ^( 2) + 2 a + 1)` `=` ` sqrt(( a + 1) ^( 2))` `=` ` a + 1`
Relation does not hold when `a=-2`
Try to fix it! Modify the formula in the box and then press .
sqrt(3a+a^2+1-a) = sqrt(a^2+2a+1) = sqrt((a+1)^2) = a+1
MathCheck main page