Question

Find the product of 1 + 3 root 2 and 1 minus 3 root 2 is this product rational or irrational

Answer 1

Answer:

it is 1-18=(-17)

Step-by-step explanation:

Answer 2

$(1 + 3 \sqrt{2})(1 - 3 \sqrt{2})$

(a+b)(a-b) = a2 -b2

Step-by-step explanation:

$(1)^{2} - (3 \sqrt{2} )^{2}$

= 1 -(9×2)

= 1 -18

= -17

which is and irrational number.

hope it helps you