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Algebra

Algebra practice problems with full solutions, from quadratic equations to linear algebra.

Practice pages
1
Problems solved
20

Practice problems with solutions

Algebra: the essentials

The distributive property

a(b+c)=ab+aca(b+c)=ab+ac. Expanding products term by term is the same rule used twice: (a+b)(c+d)=ac+ad+bc+bd(a+b)(c+d)=ac+ad+bc+bd. It is also why written multiplication by place value works.

Quadratic equations

ax2+bx+c=0ax^2+bx+c=0 has the solutions x=−b±b2−4ac2ax=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}. Practice: quadratic equations problems.