To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.

8a⁶ - 3a⁶ = 5a⁶

A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.

To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.

A triangle is a three-sided polygon. It has three interior angles that add up to 180° (a + b + c = 180°). An exterior angle of a triangle is equal to the sum of the two interior angles that are opposite (d = b + c). The perimeter of a triangle is equal to the sum of the lengths of its three sides, the height of a triangle is equal to the length from the base to the opposite vertex (angle) and the area equals one-half triangle base x height: a = ½ base x height.

To solve this equation, isolate the variable for which you are solving (c) on one side of the equation and put everything else on the other side.

7c - 6z = 2c + 5z + 7
7c = 2c + 5z + 7 + 6z
7c - 2c = 5z + 7 + 6z
5c = 11z + 7
c = \( \frac{11z + 7}{5} \)
c = \( \frac{11z}{5} \) + \( \frac{7}{5} \)
c = 2\(\frac{1}{5}\)z + 1\(\frac{2}{5}\)