Please help me !
[tex]\odot \; \; \sf{\sqrt{(a + b)} \; \times \; \sqrt{(a – b)} \; \; = \; ?}[/tex]

1 thought on “Please help me !<br /> [tex]\odot \; \; \sf{\sqrt{(a + b)} \; \times \; \sqrt{(a – b)} \; \; = \; ?}[/tex]”

1. Answer:

   √(a+b)×√(a-b)=√(a+b)(a-b)=√(a²-b²)

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