# Keyword Analysis & Research: the difference of 2 squares

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How do you identify difference of two squares?

a^2 - b^2 equals (a+b) (a-b) In mathematics, the difference of two squares is a squared (multiplied by itself) number subtracted from another squared number. Every difference of squares may be factored according to the identity. a 2 − b 2 = ( a + b ) ( a − b ) {displaystyle a^ {2}-b^ {2}= (a+b) (a-b)}

How do you use the difference of two squares?

Difference of Two Squares Formula. The trick to factorising the difference of two squares is to use the formula, textcolor{blue}{a^2 -b^2 = (a+b)(a-b)} This can be used in either direction to factorise or expand such expressions quickly. To show that this works, we will expand the two brackets of the general formula.

Are squares and square roots the same thing?

Squares are the numbers, generated after multiplying a value by itself. Whereas square root of a number is value which on getting multiplied by itself gives the original value. Hence, both are vice-versa methods. For example, the square of 2 is 4 and the square root of 4 is 2. If n is a number then its square is represented by n raised to the ...