math123a

fractions subtraction addition signed numbers equations lcd lcm multiplication division linear variables linear equations linear word problems systems polynomial polynomial operations factor factoring trinomial numbers and factors gcd equations of line slope calculation slopes of lines elementary algebra comparative phrases inequalities 2nd degree word problems sets commutative law prime factors prime number associative law reduction mixed fractions visual cross-multiplication exponents powers 2nd degree quadratic fraction (mathematics) numbers disvisibility cross multiplication order of operations arithmetic evaluation mathematical expressions solve literal equations rectangular coordinate system cartesian coordinate system lines systems of linear equations decimal scientific notation polynomial expressions binomial operations multiplication formulas vertical gcf factorization substitution factoring formulas