3
phiếu
2đáp án
1K lượt xem

Bất phương trình có căn thức!

Giải bất phương trình $8{x^3} + 2x < (x + 2)\sqrt {x + 1} $
1
phiếu
2đáp án
1K lượt xem
1
phiếu
2đáp án
1K lượt xem

GIẢI GIÙM

$\sqrt{1-2x}$ + $\sqrt{1+2X} \geq 2-x^{2}$
1
phiếu
3đáp án
1K lượt xem

cac p giup mk voi nha

giải phương trìnha.$\sqrt{3x^2 - 9x +1 }=|x-2|$b.$\sqrt{4 -\sqrt{1-x}} = \sqrt{2-x }$c.$\sqrt[3]{x+1} + \sqrt[3]{x-1}=\sqrt[3]{5x}$d.$x^3 -3x^2 + 2\sqrt{(x+2)^2}-6x=0$e.$\sqrt{5x^2 - 14x +9 } - \sqrt{x^2 - x - 20} = 5\sqrt{x - 1}$
11
phiếu
4đáp án
3K lượt xem

Bpt , hpt

1, $\begin{cases}x^{2}+y+x^{3}y+xy^{2}+xy=\frac{-5}{4} \\ x^{4} + y^{2}+xy+2x^{2}y=\frac{-5}{4} \end{cases}$2. $\sqrt{x^{2}+91}$ >...
4
phiếu
4đáp án
1K lượt xem

Dạo này não bị phẳng ko lm đk mấy bài này ... Ai ơi lm giúp mem với

Giải phương trình : $1+(6x+2)\sqrt{2x^2-1}=2(5x^2+4x)$Giải hpt:$\left\{ \begin{array}{l} x^3-y^3-3y^2=9\\ x^2+y^2=x-4y \end{array} \right.$Giải...
0
phiếu
4đáp án
1K lượt xem

jup mik dc k?

$\sqrt[3]{7x+1} -\sqrt[3]{x^{2}-x-8}+ \sqrt[3]{x^{2}-8x-1}=2$ $10x^{2} +3x +1=(1+6x)\sqrt{x^{2}+3}$$\sqrt{\frac{x^{3}}{3-4x}} -\frac{1}{2\sqrt{x} }=\sqrt{x} $$(3x-5).\sqrt{2x^{2}-3}=4x^{2}-6z+1$$27\sqrt{5+2x}+27\sqrt{4-2x}\geq(4x+1)^{2}$
6
phiếu
5đáp án
2K lượt xem

HELP ME!!!!!

Giải các pt, bất pt sau:1> $\sqrt{2x - 2\sqrt{2x-1}}$ - 2$\sqrt{2x +3 -4\sqrt{2x-1}}$ + 3$\sqrt{2x+8-6\sqrt{2x -1}}$ = 42>...

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