After square rooting the square , we always end up with two possible solution on right hand side of equation(+,- ) . So in this situation whether the both two solution satisfy the equation or one solution. So you have to select that value which satisfies the equation. The point is how do you kno...
After square rooting the square , we always end up with two possible solution on right hand side of equation(+,- ) . So in this situation whether the both two solution satisfy the equation or one solution. So you have to select that value which satisfies the equation. The point is how do you kno...