Mathematics for IGCSE & O level - Algebraic Manipulation (Section 2 - No. 23)
In the context of algebraic manipulation, what is 'difference of two squares'?
An expression in the form a² + b².
An expression in the form a² - b².
An expression in the form a² + 2ab + b².
An expression in the form (a + b)².
Explanation
The difference of two squares is an expression of the form a² - b².
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