Grade 9 Math

Use (a + b)², (a - b)² and a² - b² to expand brackets and to multiply quickly.

Break an algebraic expression into factors, and use those factors to divide one expression by another.

Find the degree of a polynomial, evaluate it at a value and recognize its zeroes.

Solve quadratic equations by factorizing, and use the discriminant to describe the roots.

Find the common difference, the nth term and the sum of an arithmetic progression.