Question

(3+√3) (3-√3)
I want the answer with step by step explanation please ​

Answer 1

Answer:

(a+b)(a-b) = a²-b²

(3+√3)(3-√3)= (3)²-(√3)²

9-3=6

Step-by-step explanation:

mate your answer is 6

hope it's helpful for you

Answer 2

ANSWER:

• The value of above expression = 6

GIVEN:

• (3+√3)(3-√3)

TO FIND:

• The value of above expression.

SOLUTION:

=(3+√3)(3-√3)

= 3(3-√3)+√3(3-√3)

= 9-3√3 +3√3 -3

= 9-3

=6

Another method:

Formula

(a+b)(a-b) = a²-b²

= (3+√3)(3-√3)

= (3)²-(√3)²

= 9-3

=6

NOTE:

some important formulas.

• (a+b)² = a²+b²+2ab
• (a-b)² = a²+b²-2ab
• (a+b)(a-b) = a²-b²
• (a+b)³ = a³+b³+3ab(a+b)
• (a-b)³ = a³-b³-3ab(a-b)