Các câu hỏi tương tự
Giải phương trình vô tỉ :
a) \(\sqrt{7x^2+25x+19}-\sqrt{x^2-2x-25}=7\sqrt{x+2}\)
b) \(\sqrt{4x^2+24x+35}-\sqrt{x^2+3x+2}=\sqrt{x^2+7x+12}\)
\(\sqrt{x}+\sqrt{x+7}+2\sqrt{x^2+7x}=35-2x\)2x
giải phương trình \(\sqrt{x}+\sqrt{x+7}+2\sqrt{x^2+7x}=35-2x\)
√( 7x^2 +25x +19) - √( x^2 -2x -35) = 7√( x+2)
27 tháng 2 2022 lúc 7:17
Gửi những ai thích tập luyện thêm:
Giải các phương trình sau:
a) \(\sqrt{x-5}+\sqrt[3]{3-x}=2\)
b) \(\sqrt{2x-3}+\sqrt{7-x}=\sqrt{5-2x}+\sqrt{3x-1}\)
c) \(\sqrt{x+3}+\sqrt{3x+1}=2\sqrt{x}+\sqrt{2x+2}\)
d) \(\sqrt{25x^2-20x+4}+\sqrt{25x^2-40x+16}=2\)
Câu 2: Tìm x biết:
a. \(\sqrt{\left(2x-3\right)^2}=7\)
b. \(\sqrt{64x-121}-\sqrt{25x-50}-\sqrt{4x-1}=20\)
c. \(\sqrt{x^2-9}-3\sqrt{x-3}=0\)
Câu 2: Tìm x biết
a. \(\sqrt{\left(2x-3\right)^2}=7\)
b. \(\sqrt{64x+128}-\sqrt{25x+50}+\sqrt{4x+8}=20\)
c. \(\sqrt{x^2-9}-3\sqrt{x-3}=0\)
1)7sqrt{3x-7}+left(4x-7right)sqrt{7-x}322)4x^2-11x+6left(x-1right)sqrt{2x^2-6x+6}3)9+3sqrt{xleft(3-2xright)}7sqrt{x}+5sqrt{3-2x}4)sqrt{2x^2+4x+7}x^4+4x^3+3x^2-2x-75)frac{6-2x}{sqrt{5-x}}+frac{6+2x}{sqrt{5+x}}frac{8}{3}6)2left(5x-3right)sqrt{x+1}+left(x+1right)sqrt{3-x}3left(5x+1right)7)sqrt{7x+7}+sqrt{7x-6}+2sqrt{49x^2+7x-42}181-14x
Đọc tiếp
1)\(7\sqrt{3x-7}+\left(4x-7\right)\sqrt{7-x}=32\)
2)\(4x^2-11x+6=\left(x-1\right)\sqrt{2x^2-6x+6}\)
3)\(9+3\sqrt{x\left(3-2x\right)}=7\sqrt{x}+5\sqrt{3-2x}\)
4)\(\sqrt{2x^2+4x+7}=x^4+4x^3+3x^2-2x-7\)
5)\(\frac{6-2x}{\sqrt{5-x}}+\frac{6+2x}{\sqrt{5+x}}=\frac{8}{3}\)
6)\(2\left(5x-3\right)\sqrt{x+1}+\left(x+1\right)\sqrt{3-x}=3\left(5x+1\right)\)
7)\(\sqrt{7x+7}+\sqrt{7x-6}+2\sqrt{49x^2+7x-42}=181-14x\)
Tìm x
a) \(x+1-2\sqrt{x+1}=0\)
b) \(2x-4-\sqrt{x-2}=0\)
c) \(2\sqrt{9x-27}-\dfrac{1}{5}\sqrt{25x-75}-\dfrac{1}{7}\sqrt{49x-147}=20 \)