Bài 3: Rút gọn phân thức
Các câu hỏi tương tự
Rút gọn:
\(\dfrac{\left(2^4+4\right)\left(6^4+4\right)\left(10^4+4\right)\left(14^4+4\right)}{\left(4^4+4\right)\left(8^4+4\right)\left(12^4+4\right)\left(16^4+4\right)}\)
Rút gọn:
\(\dfrac{\left(2^4+4\right)\left(6^4+4\right)\left(10^4+4\right)\left(14^4+4\right)}{\left(4^4+4\right)\left(8^4+4\right)\left(12^4+4\right)\left(16^4+4\right)}\)
Rút gọn
\(E=\dfrac{\left(1^4+\dfrac{1}{4}\right)\left(3^4+\dfrac{1}{4}\right)\left(5^4+\dfrac{1}{4}\right)....\left(11^4+\dfrac{1}{4}\right)}{\left(2^4+\dfrac{1}{4}\right)\left(4^4+\dfrac{1}{4}\right)\left(6^4+\dfrac{1}{4}\right)....\left(12^4+\dfrac{1}{4}\right)}\)
Rút gọn
\(E=\dfrac{\left(1^4+\dfrac{1}{4}\right)\left(3^4+\dfrac{1}{4}\right)\left(5^4+\dfrac{1}{4}\right)...\left(11^4+\dfrac{1}{4}\right)}{\left(2^4+\dfrac{1}{4}\right)\left(4^4+\dfrac{1}{4}\right)\left(6^4+\dfrac{1}{4}\right)...\left(12^4+\dfrac{1}{4}\right)}\)
Rút gọn các phân thức sau:
a, \(A=\dfrac{35.\left(27^8+2.9^{11}\right)}{15.\left(81^6-12.3^{19}\right)}\)
b, \(B=\dfrac{\left(1^4+\dfrac{1}{4}\right)\left(3^4+\dfrac{1}{4}\right)...\left(11^4+\dfrac{1}{4}\right)}{\left(2^4+\dfrac{1}{4}\right)\left(4^4+\dfrac{1}{4}\right)...\left(12^4+\dfrac{1}{4}\right)}\)
Rút gọn:
a) x4 - 4x2 + 3 / x4 + 6x2 - 7
b) x4 + x3 - x - 1 / x4 + x3 + 2x2 + x + 1
c) x3 + 3x2 - 4 / x3 - 3x + 2
d) x3 + x2 - 4x - 4 / x3 + 8x2 + 17x + 10
e) x4 + 6x3 + 9x2 - 1 / x4 + 6x3 + 7x2 - 6x + 1
13 tháng 12 2019 lúc 15:59
rút gọn:
Q=(x+5/5x^2-20-1/2x-4+x+3/x+2):(1+x+4/x^2-4)
\(b=\left(\frac{\sqrt{x}}{\sqrt{x}+4}+\frac{4}{\sqrt{x}-4}\right):\frac{x+16}{\sqrt{x}+2}\)
Biểu thức (x-4)^2 - 2(x^2-16) + (x+4)^2 sau khi rút gọn có kết quả là:
A.64 B.4x^2 C.8 D.-64