Verified answer

(√2 + √3)(√2 - √3) =

2 - √6 + √6 - 3 =

2 -3 =

-1

Answer B

(√2 + √3)(√2 - √3)=

(√2)(√2) - (√2)(√3) + (√3)(√2) - (√3)(√3)=

2 - 3 = -1

the answer is c 2 + 2 - 3

(√2 + √3)(√2 - √3)

2 + √6 +√6 - 3

2 + 2√6 - 3

=) easy

It is of the form (a + b) ( a -- b) = a^2 -- b^2

2 -- 3 = -- 1

This is a rule to remember

(a+b)(a-b) = a^2-b^2

and the root of a number multiplied by the root of that same number gives the number.

Therefore you end up with (root 2)^2 -(root 3)^2

=2-3

=-1

Answer is b.

2 - √6 + √6 - 3 = - 1

OPTION b

answer b) -1

(√2 + √3)(√2 - √3) = (√2 )^2- (√3)^2 = 2-3 = -1

I used formula a^2-b^2=(a+b)(a-b)

-1

b

B. ?

Idk though....