Question

(3) Give it a simple. (a) (3 + / 3) (3 - V3)
(b) [7 V5 + 5 V3 | + 1/5 - 3/3

Answer 1

Step-by-step explanation:

(a) (3+√3)(3-√3)

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

= (3)^2 - (√3)^2

= 9 - 3 = 6

(b) [7√5 + 5√3] + 1√5 - 3√3

= 7√5 + 5√3 + √5 - 3√3

= 7√5 + √5 + 5√3 - 3√3

= 8√5 +2√3

= 2(4√5 + √3)

Hope it helps......

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Answer 2

Answer:

a)

${3}^{2} - { \sqrt{3} }^{2}$