Question

What are the roots of a quadratic equation?

Options

• The coefficients \( a \), \( b \) and \( c \) of the equation.

• The linear factors of the quadratic expression.

• The middle-term numbers used to split the middle term.

• The values of \( x \) that satisfy the equation.

Answer 1

The roots of a quadratic equation are the values of \( x \) that satisfy the equation. For \[ ax^{2} + bx + c = 0 \], substituting a root in place of \( x \) makes the left-hand side equal to zero.