What are the 4 steps in solving an equation?

Answer 1

FOIL method to evaluate a binomial equation.

(x + 2)(x - 1)

Separate into parts.

Part 1: "x"

Part 2: "2"

Part 3: "x"

Part 4: "-1"

Step One: Multiply (F)irst parts (1 & 3).

x * x = x2.

Step Two: Multiply (O)utside parts (1 & 4).

x * -1 = -1x.

Step Three: Multiply (I)nside parts (2 & 3).

2 * x = 2x.

Step Four: Multiply (L)ast parts (2 & 4).

2 * -1 = -2.

Combine all parts into a trinomial equation and combine like terms.

x2 - x + 2x - 2

x2 + x - 2 (answer)