Question

simply (root 3 + root 7) (root 3 - root 7)

Answer 1

Answer:

root9-root49

Step-by-step explanation:

by the quadratic equations (a+b)(a-b) is a^2-b^2

Answer 2

Answer:

hi mate

here is your answer

$( \sqrt{3} + \sqrt{7}) ( \sqrt{3} - \sqrt{7} ) \\ \\ ( \sqrt{3} {)}^{2} - ( \sqrt{7} {)}^{2} \\ \\ \\ 3 - 7 \\ \\ - 4$

by using these identity

(A+B) (A-B)

=(A)^2 - (B)^2

therefore the answer is -4

hope it helped you

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