Question

1) Đưa thừa số ra ngoài dấu căn :

a) \(\sqrt{96.125}\)

e) \(\sqrt{a^4.b^5}\)

d) \(\sqrt{11.44a^2}\)

f) \(\sqrt{a^6.b^{11}}\)

ai giúp e mấy câu này với ạ

Answer 1

=\(\sqrt{16\cdot6\cdot25\cdot5}\)

=\(\sqrt{4^2\cdot6\cdot5^2\cdot5}\)

=4*5\(\sqrt{6\cdot5}\)

=20\(\sqrt{30}\)

Answer 2

b) =\(\sqrt{\left(a^2\right)^2\cdot\left(b^2\right)^2\cdot b}\)

=\(a^2b^2\sqrt{b}\)

Answer 3

d)=\(\sqrt{11\cdot11\cdot4\cdot a^2}\)

=\(\sqrt{11^2\cdot2^2\cdot a^2}\)

=11*2*a

=22a

Answer 4

f)=\(\sqrt{\left(a^3\right)^2\cdot\left(b^5\right)^2\cdot b}\)

=\(a^3b^5\sqrt{b}\)