Question

Simplify: (root3+root7)(root3-root7) PLZZ ANSWER IT QUCIK.....

Answer 1

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(√3 + √7) (√3 - √7)

Using Formula :-

[ (a + b) (a - b) = a² - b² ]

(√3)² - (√7)²

=> 3 - 7

=> -4

Answer 2

Answer:

(√3+√7)(√3-√7) = -4

Step-by-step explanation:

Given expression is (√3+√7)(√3-√7)

Required to simplify the given expression

Recall the formula

(a+b)(a-b) = a² - b²

(√a)² = √a, for any number a

Solution:

We have the expression

(√3+√7)(√3-√7)

By applying the identity (a+b)(a-b) = a² - b² we get

Here a = √3  and b =√7

(√3+√7)(√3-√7) = (√3)² -(√7)²

Since (√a)² = √a, we have

= 3 -7

= -4

∴(√3+√7)(√3-√7) = -4

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