3 years ago

Express (root 19 - root 7)(root 19 + root 7) in simplest form.

2 answers:

7 0

Answer

root 354

Step-by-step explanation:

Svetllana [295]3 years ago

3 0

Answer:

Step-by-step explanation:

(√19 -√7)(√19 +√7)

( a +b)( a -b) = a²-b²

(√19)² -(√7)² = 19 -7 = 12

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