Question

(a) Expand and simplify (4 + root3)(4 – root3).​

Answer 1

Step-by-step explanation:

just use (a+b)(a-b) = $a^{2} - b^{2}$$(4+\sqrt{3}) (4-\sqrt{3)} = 4^{2} - (\sqrt{3} )^{2} = 16 - 3 = 13$

answer is 13