Quadratics and fractions

• You need to remove fractions before you can solve an equation
• To remove fractions from an equation multiply everything by the lowest common multiple of the denominators

Examiners report

• Be really careful when copying algebraic working from one line to the next
• You will lose marks for accuracy if you copy numbers or + or - signs incorrectly

Quadratic equations checklist

• Remove any fractions by multiplying everything by the lowest common multiple of the denominators
• Multiply out any brackets and collect like terms
• Rewrite in the form ax^2 + bx + c = 0
• Factorise the left-hand side to solve the quadratic equation