Các câu hỏi tương tự
26 tháng 11 2021 lúc 21:08
GPT:
1, \(6x^2+10x-92+\sqrt{\left(x+70\right)\left(2x^2+4x+16\right)}=0\)
2,\(x+3+\sqrt{1-x^2}=3\sqrt{x+1}+\sqrt{1-x}\)
26 tháng 10 2021 lúc 9:38
1) \(\sqrt{x^2}=2x-5\)
2) \(\sqrt{25x^2-10x+1}=2x-6\)
3) \(\sqrt{25-10x+x^2}=2x-5\)
4) \(\sqrt{1-2x+x^2}=2x-1\)
5) \(\sqrt{4x^2+4x+1}=-x-3\)
\(\sqrt{2x^2-10x+16}-\sqrt{x-1}=x-3\)
ai làm đc mink tích thanks
Tìm điều kiện có nghĩa:1) sqrt{2x^2}2) sqrt{-x}3) sqrt{-x^2-3}4) sqrt{x^2+2x+3}5) sqrt{-a^2+8a-16}6) sqrt[]{16x^2-25}7) sqrt{4x^2-49}8) sqrt{8-x^2}9) sqrt{x^2-12}10) sqrt{x^2+2x-3}11) sqrt{2x^2+5x+3}12) sqrt{dfrac{4}{x-1}}13) sqrt{dfrac{-1}{x-3}}14) sqrt{dfrac{-3}{x+2}}15) sqrt{dfrac{1}{2a-1}}16) sqrt{dfrac{2}{3-2a}}17) sqrt{dfrac{-1}{2a-5}}18) sqrt{dfrac{-2}{3-5a}}19) sqrt{dfrac{-a}{5}}20) dfrac{1}{sqrt{-3a}}
Đọc tiếp
Tìm điều kiện có nghĩa:
1) \(\sqrt{2x^2}\)
2) \(\sqrt{-x}\)
3) \(\sqrt{-x^2-3}\)
4) \(\sqrt{x^2+2x+3}\)
5) \(\sqrt{-a^2+8a-16}\)
6) \(\sqrt[]{16x^2-25}\)
7) \(\sqrt{4x^2-49}\)
8) \(\sqrt{8-x^2}\)
9) \(\sqrt{x^2-12}\)
10) \(\sqrt{x^2+2x-3}\)
11) \(\sqrt{2x^2+5x+3}\)
12) \(\sqrt{\dfrac{4}{x-1}}\)
13) \(\sqrt{\dfrac{-1}{x-3}}\)
14) \(\sqrt{\dfrac{-3}{x+2}}\)
15) \(\sqrt{\dfrac{1}{2a-1}}\)
16) \(\sqrt{\dfrac{2}{3-2a}}\)
17) \(\sqrt{\dfrac{-1}{2a-5}}\)
18) \(\sqrt{\dfrac{-2}{3-5a}}\)
19) \(\sqrt{\dfrac{-a}{5}}\)
20) \(\dfrac{1}{\sqrt{-3a}}\)
\(\left(1\right)\sqrt{x^2-9}-2\sqrt{x-3}=0\)
\(\left(2\right)\sqrt{4x+1}-\sqrt{3x-4}=1\)
\(\left(3\right)\sqrt{x^2-10x+25}=5-x\)
\(\left(4\right)\sqrt{x^2-8x+16}=x+2\)
Giải phương trình: a) sqrt{x+3-4sqrt{x+1}}+sqrt{x+8-6sqrt{x-1}}1b) sqrt{x+sqrt{x-11}}+sqrt{x-sqrt{x-11}}4c) sqrt{x+2+3sqrt{2x-5}}+sqrt{x-2sqrt{2x-5}}2sqrt{2}d) sqrt{x-4}+sqrt{6-x}x^2-10x+27e) sqrt{2x+1}+sqrt{17-2x}x^4-8x^3+17x^2-8x+22f) sqrt{3x^2+12x+16}+sqrt{y^2-4y+13}5g) sqrt{x+x^2}+sqrt{x-x^2}x+1ai lmmm giúp tui ikkk
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Giải phương trình:
a) \(\sqrt{x+3-4\sqrt{x+1}}+\sqrt{x+8-6\sqrt{x-1}}=1\)
b) \(\sqrt{x+\sqrt{x-11}}+\sqrt{x-\sqrt{x-11}}=4\)
c) \(\sqrt{x+2+3\sqrt{2x-5}}+\sqrt{x-2\sqrt{2x-5}}=2\sqrt{2}\)
d) \(\sqrt{x-4}+\sqrt{6-x}=x^2-10x+27\)
e) \(\sqrt{2x+1}+\sqrt{17-2x}=x^4-8x^3+17x^2-8x+22\)
f) \(\sqrt{3x^2+12x+16}+\sqrt{y^2-4y+13}=5\)
g) \(\sqrt{x+x^2}+\sqrt{x-x^2}=x+1\)
ai lmmm giúp tui ikkk
1) Tìm các số tự nhiên x đề \(\sqrt{1^3+2^3+...+x^3}\) = 4950
Giải phương trình vô tỉ
2) \(\sqrt[8]{1-x}+\sqrt[8]{x+1}+\sqrt[8]{x^2-1}=3\)
3) \(\sqrt{x-1}+x-3=\sqrt{x^2-10x+16}\)
a) x+sqrt{left(x-2right)^2}b) sqrt{left(x-3right)^2} -xc) x-sqrt{left(x-1right)^2}d) sqrt{m^2-6m+9} -2me) m-sqrt{m^2-2m+1}f) 2x-sqrt{4x^2+4x+1}g)sqrt{x^2-10x+25} -xh) dfrac{sqrt{x^2+10x+25}}{x^2-25}i) dfrac{sqrt{1-2m+m^2}}{m^2-1}
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a) x+\(\sqrt{\left(x-2\right)^2}\)
b) \(\sqrt{\left(x-3\right)^2}\) -x
c) x-\(\sqrt{\left(x-1\right)^2}\)
d) \(\sqrt{m^2-6m+9}\) -2m
e) m-\(\sqrt{m^2-2m+1}\)
f) 2x-\(\sqrt{4x^2+4x+1}\)
g)\(\sqrt{x^2-10x+25}\) -x
h) \(\dfrac{\sqrt{x^2+10x+25}}{x^2-25}\)
i) \(\dfrac{\sqrt{1-2m+m^2}}{m^2-1}\)
23 tháng 7 2021 lúc 16:15
1) ( 3sqrt{50}-5sqrt{18}+3sqrt{8} ).sqrt{2}2. Tìm điều kiện:1)sqrt{-10x} 6) sqrt{dfrac{3x+21}{-5}}2) sqrt{6-3x} 7) sqrt{left(x^2+1right).2x}3) dfrac{-4}{sqrt{4x+6}} 8) sqrt{left(-x^2-2right)}.3x4) dfrac{5}{sqrt{2x}} 9) sqrt{dfrac{1}{left(x-1right)^2}}5) sqrt{dfrac{-1}{2x-6}}hộ mk với tí nx pk nộp r ;-; help
Đọc tiếp
1) ( \(3\sqrt{50}-5\sqrt{18}+3\sqrt{8}\) ).\(\sqrt{2}\)
2. Tìm điều kiện:
1)\(\sqrt{-10x}\) 6) \(\sqrt{\dfrac{3x+21}{-5}}\)
2) \(\sqrt{6-3x}\) 7) \(\sqrt{\left(x^2+1\right).2x}\)
3) \(\dfrac{-4}{\sqrt{4x+6}}\) 8) \(\sqrt{\left(-x^2-2\right)}.3x\)
4) \(\dfrac{5}{\sqrt{2x}}\) 9) \(\sqrt{\dfrac{1}{\left(x-1\right)^2}}\)
5) \(\sqrt{\dfrac{-1}{2x-6}}\)
hộ mk với tí nx pk nộp r ;-; help
a)\(\sqrt{3x^2+6x+7}+\sqrt{5x^2+10x+14}=4-2x-x^2\)
b)\(\sqrt{x-2\sqrt{x-1}}-\sqrt{x-1}=1\)
c)\(\sqrt{x-7}+\sqrt{9-x}=x^2-16+66\)
giải pt nhé giúp mình với chiều học rồi