Pamela Weber Harris , a former high school math teacher contends in a new volume, Developing Mathematical Reasoning: Avoiding the Trap of Algorithms, that too many classrooms focus too much on ...

Let's use the FOIL method for this one. FOIL stands for: First, Outer, Inner, and Last. This gives you an order for multiplying the terms in the first bracket by those in the second bracket.

Others, meanwhile, did FOIL it and came up with an incorrect product, 3x3 + 15x2 - 4x - 20, as a result (instead of 3x3 + 10x2 - 29x - 20). Foiled by the FOIL Method (Opinion) ...

Watch this video to see how to expand double brackets using the grid or FOIL method. ... (algebra) An element within an algebraic sentence, eg 𝑥 or 5𝑦 or 3𝑒².