Question

Ada yang bisa bantu ngga ka?
1)a.4ab^5 : 2b^3
B.(2p)^2 . P^3
C.√80-√5+√125
D.√3-2 per √3+2

Answer 1

A) 4ab^5 : 2b^3 = (4/2)a(b)^(5-3) = 2ab²

b) (2p)² . p³ = 4p² . p³ = 4p^(2+3) = 4p^5

c) √80 - √5 + √125 = 4√5 - √5 + 5√5 = (4 - 1 +  5)√5 = 8√5

d) (√3 - 2)/(√3 + 2)
=  (√3 - 2)/(√3 + 2)  x  (√3 - 2)/(√3 - 2)
= (√3 - 2)²/(3 - 4)
= - (3 + 4 - 4√3)
= -(7 - 4√3)
= 4√3 - 7