Chương I - Căn bậc hai. Căn bậc ba
Các câu hỏi tương tự
Tìm x biết
a) \(\dfrac{5}{3}\sqrt{15x}-\sqrt{15x}-2=\dfrac{1}{3}\sqrt{15x}\)
b) \(\sqrt{16x+16}-\sqrt{9x+9}+\sqrt{4x+4}+\sqrt{x+1}=16\)
c ) \(\sqrt{4x+20}-3\sqrt{5+x}+\dfrac{4}{3}\sqrt{9x+45}=6\)
d) \(\sqrt{25x-25}-\dfrac{15}{2}\sqrt{\dfrac{x-1}{9}}=6+\sqrt{x+1}\)
e ) \(\sqrt{4x^2+4x+1}=1\)
Bài 1: Tìm x, biết
a)\(2\sqrt{9x-27}-\dfrac{1}{5}\sqrt{25x-75}-\dfrac{1}{7}\sqrt{49x-147}=20\)
b) \(\sqrt{9x+18}-5\sqrt{x+2}+\dfrac{4}{5}\sqrt{25x+50}=6\)
c)\(\sqrt{16x-16}-\sqrt{9x-9}+\sqrt{4x-4}+\sqrt{x-1}=8\)
d) \(\sqrt{x+2\sqrt{x-1}}-\sqrt{x-2\sqrt{x-1}}=2\)
1) Tìm x biết
a) \(\sqrt{4x-20}+\sqrt{x-5}-\frac{1}{3}=\sqrt{9x-45}=4\)
b) \(\sqrt{16x-32x}-\sqrt{12x}=\sqrt{3x}+\sqrt{9-18x}\)
c) \(\sqrt{4x-20}-3\sqrt{\frac{x-5}{9}}=\sqrt{1-x}\)
Giải phương trình
a \(\sqrt{x^2-4}-3\sqrt{x-2}=0\)
b \(x-6\sqrt{x}+9=0\)
c \(\sqrt{9x-27}+\sqrt{x-3}-\frac{1}{2}\sqrt{4x-12}=7\)
d \(3\sqrt{8x+4}-\frac{1}{3}\sqrt{18x+9}-\frac{1}{2}\sqrt{50x+25}+\sqrt[]{\frac{2x+1}{4}}=6\)
Giải các phương trình sau:
a.\(3\sqrt{18x}-5\sqrt{8x}+4\sqrt{50x}=38\)
b.\(3\sqrt{12x}-2\sqrt{27x}+4\sqrt{3x}=8\)
c.\(\sqrt{4x-20}+\sqrt{x-5}-\dfrac{1}{3}\sqrt{9x-45}=4\)
giải phương trình
a)sqrt{2x}-sqrt{98}0
b)sqrt{2x}sqrt{8}
c)sqrt{5x^2}sqrt{20}
d)sqrt{2x}-3sqrt{8x}+4sqrt{32x}52
e)3sqrt{x-1}+2sqrt{4x-4}-3sqrt{9x-9}-6
f)sqrt{x-1}+sqrt{4x-4}-sqrt{25x-25}+20
g)sqrt{9x^2+18}+2sqrt{x^2+2}-sqrt{25x^2+50+3}0
h)sqrt{x-1}sqrt{3}
k)sqrt{9x^2-6x+1}3
l)sqrt{2x-1}2
m)sqrt{x+2}sqrt{3-x}
n)sqrt{4x^2}-4x+1sqrt{7-4sqrt{3}}+sqrt{7+4sqrt{3}}
Đọc tiếp
giải phương trình
a)\(\sqrt{2x}-\sqrt{98}=0\)
b)\(\sqrt{2x}=\sqrt{8}\)
c)\(\sqrt{5x^2}=\sqrt{20}\)
d)\(\sqrt{2x}-3\sqrt{8x}+4\sqrt{32x}=52\)
e)\(3\sqrt{x-1}+2\sqrt{4x-4}-3\sqrt{9x-9}=-6\)
f)\(\sqrt{x-1}+\sqrt{4x-4}-\sqrt{25x-25}+2=0\)
g)\(\sqrt{9x^2+18}+2\sqrt{x^2+2}-\sqrt{25x^2+50+3}=0\)
h)\(\sqrt{x-1}=\sqrt{3}\)
k)\(\sqrt{9x^2-6x+1}=3\)
l)\(\sqrt{2x-1}=2\)
m)\(\sqrt{x+2}=\sqrt{3-x}\)
n)\(\sqrt{4x^2}-4x+1=\sqrt{7-4\sqrt{3}}+\sqrt{7+4\sqrt{3}}\)
Giải các phương trình sau
1) \(\sqrt{9x+9}-4\sqrt{\dfrac{x+1}{4}}=5\)
2) \(\sqrt[]{x-5}-2\sqrt{4x-20}-\dfrac{1}{3}\sqrt{9x-45}=12\)
3) \(\sqrt{16x-16}-\sqrt{9x-9}+\sqrt{x-1}=5\)
Giúp em sớm với ạ! Em đang cần gấp
Tìm x biết:
a.\(\sqrt{18x}+2\sqrt{8x}-3\sqrt{2x}=12\)
b.\(\sqrt{9x+18}+2\sqrt{36x+72}-\sqrt{4x+8}=26\)
c.\(\sqrt{\left(x-2\right)^2}=10\)
d.\(\sqrt{9x^2-6x+1}=15\)
e.\(\sqrt{3x+4}=3x-8\)
Giải phương trình sau:
a) \(\sqrt{4x+20}-3\sqrt{5+x}+\dfrac{4}{3}\sqrt{9x+45}=6\)
b) \(\dfrac{1}{2}\sqrt{x-1}-\dfrac{3}{2}\sqrt{9x-9}+24\sqrt{\dfrac{x-1}{64}}=-17\)
c) \(2x-x^2+\sqrt{6x^2-12x+7}=0\)
d) \(\left(x+1\right)\left(x+4\right)-3\sqrt{x^2+5x+2}=6\)