Verified answer

(√[3] + 4√[5])(2√[3] – √[5])=2x3-√15+8√15-4x5=6-20+√15(8-1)=

7√15-14

a million. a million/4*a million/2 = a million/8 (multiply the numerators and the denominators) 2. 3/4*8/9 = a million/a million*2/3 = 2/3 (3 is going in 9 3 circumstances and four is going in 8 2 circumstances, hence the tip effect) 3. 15*2/3 = 5*2 = 10 (3 is going in 15 5 circumstances) 4. convert the blended fractions as follows 2 a million/3 = 7/3 and 3 a million/2 = 7/2 so 2 a million/3* 3 a million/2 = 7/3*7/2 = 40 9/6 = 8 a million/6 5. as defined above 4 2/5*3 = 22/5*3 = 66/5 = 13 a million/5 6. 5 5/6*2 4/5 = 35/6*14/5 = 7/3*7/a million = 40 9/3 = sixteen a million/3 choose it helps

(sqrt(3) + 4 * sqrt(5))(2 * sqrt(3) - sqrt(5))

FOIL

F: sqrt(3) * 2 * sqrt(3) = 3 * 2 = 6

O: sqrt(3) * -sqrt(5) = -sqrt(15)

I: 4 * sqrt(5) * 2 * sqrt(3) = 8 * sqrt(15)

L: 4 * sqrt(5) * -sqrt(5) = 4 * -5 = -20

6 - sqrt(15) + 8 * sqrt(15) - 20

7 * sqrt(15) - 14