To factor a quadratic expression, apply the FOIL method (First, Outside, Inside, Last) in reverse. First, find the two Last terms that will multiply to produce 12 as well and sum (Inside, Outside) to equal -8. For this problem, those two numbers are -6 and -2. Then, plug these into a set of binomials using the square root of the First variable (y²):

y² - 8y + 12
y² + (-6 - 2)y + (-6 x -2)
(y - 6)(y - 2)

A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.

A line on the coordinate grid can be defined by a slope-intercept equation: y = mx + b. For a given value of x, the value of y can be determined given the slope (m) and y-intercept (b) of the line. The slope of a line is change in y over change in x, \({\Delta y \over \Delta x}\), and the y-intercept is the y-coordinate where the line crosses the vertical y-axis.

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.

The volume of a cube is height x length x width:

v = h x l x w
v = 1 x 8 x 6
v = 48