Question

3 + 2 root 2 multiply 3 minus 2 root 2 ​

Answer 1

Hi friend!!

(3+2√2)(3-2√2)

we know that

x²-y²=(x+y)(x-y)

=(3)²-(2√2)²

=9-8

=1

I hope this helps you ;)

Answer 2

Answer:

(3 + 2√2)(3 - 2√2) = 1

Step-by-step explanation:

(3 + 2√2)(3 - 2√2)

By using the formula of a² - b².

°.° a² - b² = (a + b)(a - b)

Use the formula and solve.

=> (a + b)(a - b) = a² - b²

Now, put the given values.

=> (a + b)(a - b) = a² - b²

=> (3 + 2√2)(3 - 2√2) = 3² - (2√2)²

=> (3 + 2√2)(3 - 2√2) = 9 - 8

=> (3 + 2√2)(3 - 2√2) = 1

.°. (3 + 2√2)(3 - 2√2) = 1 ANSWER