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Question Number 79719 by Ell Tee last updated on 27/Jan/20

(((2.39)^2 −(1.61)^2 )/(2.39−1.61))...?

Missing \left or extra \right

Commented by MJS last updated on 27/Jan/20

((a^2 −b^2 )/(a−b))=(((a−b)(a+b))/(a−b))=a+b

a2−b2a−b=(a−b)(a+b)a−b=a+b

Answered by naka3546 last updated on 27/Jan/20

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