Question

REPEDE!!!!!
1.Calculati :
a)radical 160 - 3 radical 90 + 4 radical 10 =
b)radical 300 + radical 108 - radical 27 - radical 432 =

2.Calculati : a*b si a:b
a)a= -2 radical 54 + 3 radical 384 - 5 radical 96 ; b= 2 radical 50 - 5 radical 128 + 2 radical 162
b)a= 4 radical 384 + 2 radical 216 - 3 radical 150 ; b=-2 eadical 32 - 4 radical 18 + 5 radical 72

Answer 1

a)4radical10 - 9radical10 +4radical10 = -radical10 b)10radical3 + radical(10^2+2^2×2) -radical(3^2×3) -radical(20^2+4^2×2)=10radical3 +20radical2 -3radical3-80radical2=7radical3-6radical2 2) a= 4radical(3×10^2+2^2+2^2×2×10) +2radical(10^2×2×4^2) -3radical(10^2×5^2×2) = ........ ma saturai ... :)

Answer 2

2. a=-2√54+3√384=-2*3√6+3*2√86=-6√6+6√86=6(√86-√6)
54=2*27=2*3³
384=2*192=2²*86=2³*43
b=2*5√2-5*8√2+2*9√2=(10-40+18)√2=-12√2
a*b=-72√2(√86-√6)-72(2√43-2√3)=-144(√43-√3)
a:b=-1/2(√43-√3)