Chương I - Căn bậc hai. Căn bậc ba
Các câu hỏi tương tự
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) \(\left(x+1\right)\left(x+4\right)-3\sqrt{x^2+5x+2}=6\)
Giải phương trình
1.\(\sqrt{2x-3}-\sqrt{5-2x}=3x^2-12x+14\)
2.\(x^2+2x+15=6\sqrt{4x+5}\)
3.\(x^2-5x-8=2\sqrt{x-2}\)
4.\(\sqrt{x+1+\sqrt{x+\frac{3}{4}}}=x+1\)
a,\(\sqrt{x^2-5x+4}+\sqrt{x+1}=\sqrt{x-2}+\sqrt{x^2-2x-3}\)
b,\(\sqrt{x^2-3x+2}+\sqrt{x^2-4x+3}=2\sqrt{x^2-5x=4}\)
c,\(\sqrt{4x^2+9x+5}+\sqrt{2x^2+x-1}=\sqrt{x^2-1}\)
Tìm GTLN:
a) A sqrt{3-2x^2}
b) B sqrt{-9x^2+6x+3}
c) B 5+sqrt{-4x^2-4x}
d) C sqrt{-x^2+x+frac{3}{4}}
e) D sqrt{x^2+2x+1}+sqrt{x^2-2x+1}
g) G sqrt{25x^2-20x+4}+sqrt{25x^2}
f) F sqrt{4x^2-4x+1}+sqrt{4x^2-12x+9}
Đọc tiếp
Tìm GTLN:
a) A= \(\sqrt{3-2x^2}\)
b) B= \(\sqrt{-9x^2+6x+3}\)
c) B= \(5+\sqrt{-4x^2-4x}\)
d) C= \(\sqrt{-x^2+x+\frac{3}{4}}\)
e) D= \(\sqrt{x^2+2x+1}+\sqrt{x^2-2x+1}\)
g) G= \(\sqrt{25x^2-20x+4}+\sqrt{25x^2}\)
f) F= \(\sqrt{4x^2-4x+1}+\sqrt{4x^2-12x+9}\)
Giải các phương trình sau
a\(\frac{1}{2}\sqrt{x-1}-\frac{3}{2}\sqrt{9x-9}+24\sqrt{\frac{x-1}{64}}=-17\)
b \(\sqrt{9x^2+18}+2\sqrt{x^2+2}-\sqrt{25x^2+50}+3=0\)
c\(2x-x^2+\sqrt{6x^2-12+7}=0\)
d\(\left(x+1\right).\left(x+4\right)-3\sqrt{x^2+5x+2}=6\)
Giải phương trình \(\sqrt{9x^2-6x+1}+\sqrt{9x^2-12x+9}=2\)
\(\sqrt{x-\sqrt{2x-1}}+\sqrt{x+\sqrt{2x-1}}=\sqrt{2}\)
Giải pt : a) \(\sqrt{3x^2-5x+1}-\sqrt{x^2-2}=\sqrt{3\left(x^2-x-1\right)}-\sqrt{x^2-3x+4}\)
b) \(\left(x-1\right)\sqrt{x^2+5}+x=x^2+1\)
c)\(\sqrt{x+2}+2x-10=\sqrt{2x-3}\)
d)\(\sqrt{2x-3}-\sqrt{x}=2x-6\)
e) \(\sqrt{4x^2+5x+1}-2\sqrt{x^2-x+1}=9x-3\)
Cho
TÍnh
Giải các phương tình sau:
a) \(x^3-3x^2+12x-5=2\sqrt{5x-1}+\sqrt[3]{3x-2}\)
b) \(4x^2+24x+17=2\sqrt{2x+5}+\sqrt[3]{4x+10}\)
c) \(2x^3-5x^2+16x-3=2\sqrt[3]{4x-1}+\sqrt[3]{2x+7}\)
d) \(2x^2+11x+12=2\sqrt{2x+3}+\sqrt[3]{x+2}\)
e) \(2x^2+3x-3-2\sqrt{2x+1}-\sqrt[3]{4x+2}=0\)