Question

please help me with this question
by explaining​

Answer 1

Step-by-step explanation:

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

$(4 \sqrt{3} - 2 \sqrt{2} )(4 \sqrt{3} + 2 \sqrt{2} )$

$(4 \sqrt{3} ) {}^{2} - ( 2\sqrt{2}) {}^{2}$

48 - 8= 40

Answer 2

Answer:

40

Step-by-step explanation:

(4√3-2√2) (4√3+2√2)

(4√3)^2+(4√3)(2√2)-(4√3)(2√2)-(2√2)^2

remaining after cancellation

(4√3)^2-(2√2)^2

(4)^2(√3)^2-(2)^2(√2)^2

16×3-4×2

48-8

40