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CMR: 1 x 3 x 5 x 7 x...x 19 = \(\frac{11}{2}\times\frac{12}{2}\times\frac{13}{2}\times...\times\frac{20}{2}\)
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\(\left(^{x^2}\times y\right)^{^5}\times\left(x^2\times y^2\right)^7\times\left(x\times y^2\right)^6\times x^3\)
31 tháng 12 2022 lúc 19:46
a) dfrac{-2}{15}times xdfrac{-2}{7} b) dfrac{7}{-5}times x-3 c) -dfrac{4}{9}xdfrac{1}{2} d) dfrac{8}{3}div xdfrac{-3}{8} e) xdivdfrac{3}{-4}-12 f) left(-1right)div xdfrac{-3}{7}+dfrac{4}{5} g)dfrac{4}{11}x-dfrac{1}{3}dfrac{2}{5} i) dfrac{-6}{7}-dfrac{1}{5}x-4j) dfrac{1}{2}+dfrac{2}{3}div7dfrac{-1}{3} k) dfrac{-5}{2}+xdiv7dfr...
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a) \(\dfrac{-2}{15}\times x=\dfrac{-2}{7}\) b) \(\dfrac{7}{-5}\times x=-3\) c) \(-\dfrac{4}{9}x=\dfrac{1}{2}\) d) \(\dfrac{8}{3}\div x=\dfrac{-3}{8}\)
e) \(x\div\dfrac{3}{-4}=-12\) f) \(\left(-1\right)\div x=\dfrac{-3}{7}+\dfrac{4}{5}\) g)\(\dfrac{4}{11}x-\dfrac{1}{3}=\dfrac{2}{5}\) i) \(\dfrac{-6}{7}-\dfrac{1}{5}x=-4\)
j) \(\dfrac{1}{2}+\dfrac{2}{3}\div7=\dfrac{-1}{3}\) k) \(\dfrac{-5}{2}+x\div7=\dfrac{-1}{3}\) L) \(\dfrac{-3}{2}-\dfrac{1}{4}\div x=-1\)
\(|x+1|\times(2+x)=2+x\)x.Tìm x
\(x\times x^2\times x^3\times x^4\times...\times x^{100}\)
\(1,5+1\frac{1}{4}\times x=\frac{2}{3}\)
Tìm x:\(\left(2,7.x-1\frac{1}{2}.x\right)\div\frac{2}{7}=\frac{-21}{4}\)
\(3\frac{1}{3}\times x+16\frac{3}{4}=-13,25\)
\(\left(4,5-2\times x\right)\div\frac{3}{4}=1\frac{1}{3}\)
x −18 = −69 − 2\(\times\)x
5\(\times\)x + 71 = 23 − 3\(\times\)x
3\(\times\)(x − 2)− 2\(\times\)x = −10
TÌM X BIẾT: \(\frac{1}{2}\times x+\frac{3}{5}\times\left(x-2\right)=3\)
p) -5 \(\times\)( x - 1/5) - 1/2 \(\times\)( x - 2/3 ) = 3/2 \(\times\)x - 5/6
bài nâng cao:
a) 33.x - 1 = 9x - 2
b) ( x - 1)4 = ( x - 3 )6
Các bạn giúp tui nha!!! Vì chiều nay là tui có toàn rùi.
Thank you!!!
\(2\frac{2}{5}\times x+\frac{5}{6}\times x-1\frac{1}{4}=35\%\)