\(\Leftrightarrow4\sqrt{x+1}-3\sqrt{x+1}=4\)
=>x+1=16
hay x=15
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Giải pt
\(\left(x+17\right)\sqrt{4-x}+\left(20-x\right)\sqrt{x+1}-9\sqrt{\left(4-x\right)\left(x+1\right)}=3\)
15 tháng 9 2018 lúc 13:20
Cac bạn giúp mình với :<
Giải PT : \(\left(5x-16\right)\sqrt{x+1}=\sqrt{x^2-x-20}\left(5+\sqrt{5x+9}\right)\)
Giải PT
\(\sqrt{4x-20}-3\sqrt{\frac{x-5}{9}}=\sqrt{1-x}\)
\(\sqrt{4x+8}+2\sqrt{x+2}-\sqrt{9x+18}=1\)
\(\sqrt{3x^2-4x+3}=1-2x\)
\(\sqrt{16\left(x+1\right)}-\sqrt{9\left(x+1\right)}=4\)
giải pt
\(\frac{2\left(x-\sqrt{2}\right)\left(x-\sqrt{3}\right)}{\left(1-\sqrt{2}\right)\left(1-\sqrt{3}\right)}+\frac{3\left(x-1\right)\left(x-\sqrt{3}\right)}{\left(\sqrt{2}-1\right)\left(\sqrt{2}-\sqrt{3}\right)}+\frac{4\left(x-1\right)\left(x-\sqrt{2}\right)}{\left(\sqrt{3}-1\right)\left(\sqrt{3}-2\right)}\)=3x-1
\(\sqrt{4\left(x-1\right)}-\sqrt{9\left(x-1\right)}-\sqrt{16\left(x-1\right)}\)
Áp dụng nội suy niu tơn để giải pt sau
\(\frac{2\left(x-\sqrt{2}\right)\left(x-\sqrt{3}\right)}{\left(1-\sqrt{2}\right)\left(1-\sqrt{3}\right)}+\frac{3\left(x-1\right)\left(x-\sqrt{3}\right)}{\left(\sqrt{2}-1\right)\left(\sqrt{2}-\sqrt{3}\right)}+\frac{4\left(x-1\right)\left(x-\sqrt{2}\right)}{\left(\sqrt{3}-1\right)\left(\sqrt{3}-\sqrt{2}\right)}=3x-1\)
giải pt\(\sqrt{1+x}+\sqrt{4-x}+\sqrt{\left(x-1\right)\left(4-x\right)}=5\)
\(\left(1\right)\sqrt{x^2-9}-2\sqrt{x-3}=0\)
\(\left(2\right)\sqrt{4x+1}-\sqrt{3x-4}=1\)
\(\left(3\right)\sqrt{x^2-10x+25}=5-x\)
\(\left(4\right)\sqrt{x^2-8x+16}=x+2\)
Giải pt và bpt sau:
a)\(\sqrt{x-2\sqrt{x-1}}\)=\(\sqrt{2}\)
b)\(\dfrac{4}{3}\sqrt{16\left(2-2x\right)^3}>24\)
\(\left\{{}\begin{matrix}\sqrt{3x}.\left(1+\dfrac{1}{x+y}\right)=2\\\sqrt{7y}.\left(1-\dfrac{1}{x-y}\right)=4\sqrt{2}\end{matrix}\right.\)
Giải hệ pt