Những câu hỏi liên quan
1,. Tính
A=10101*(5/111111+5/222222+4/3*7*11*13*37
2, Rut gon phan so
A. 6*9-2*17/63*3-119
B. 2*3+4*6+14*21/3*5+6*10+21*35
rut gon A= 1*4/2*3+2*5/2*4+3*6/4*5+...+98*101/99*100
rut gon 1*2*5+3*3*15+4*8*20+7*14*350/2*5*11+6*10+33+8*20*44+14*35*770
rut gon roi quy dong mau cac phan so sau
-5^2-5*3^2 / 5^3+5^2*3^2 4^6*9^5*6^9*120/8^4*3^12*6^11 ; 4^5*9^4*2*6^4/2^10*3^8+6^8*20
de bai rut gon roi so sanh 6 phan 10 va 4 phan 5
Rút gọn phân số \(\frac{6}{10}\)là:
\(\frac{6}{10}\)= \(\frac{3}{5}\)
Vì \(\frac{3}{5}< \frac{4}{5}\)nên \(\frac{6}{10}< \frac{4}{5}\)
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Rut gon phan so sach hai phan so
a,6 phần 10 va 4 phan 5
b,3 phan 4 va 6 phan 12
rut gon
a,3x(2x-7)-3x(4x-5)
b,(-7x+8)(-2x+3)-7x(2x-4)
c,(2x-3)(3x2-2x+4)-(2x-3)(3x+4)
d,(-2+7)(3x-6)-(4x-5)(2x-6)
rut gon
a,3x(2x-7)-3x(4x-5)
b,(-7x+8)(-2x+3)-7x(2x-4)
c,(2x-3)(3x2-2x+4)-(2x-3)(3x+4)
d,(-2+7)(3x-6)-(4x-5)(2x-6)
19 22 25 28 5(3x + 2) – 4(2x +3) x*(1 + 2x) 4(1 + x) – 3(2x-5) 4x–8(6) - X) 23/ ... 2x” – 4x + 3x – 6 = 2x” – X-6 (b) (x-3) = (x-3)(x-3) (c) (2x+y)(2x–y) = x* = x* – 3x ... (x - 6)” 7 (3x + 5)(x-6) 8 (8x + 2)(3x + 4) (4x – 1)(2x – 3) 10 (2x +5)* 11 (8x – 3)(2x + ... 27 (4x + 3y)(x + y) 28 (2x + 5)(5x – 2) (4x – 3y)(4x + y) 30 (7x + 2y)(3x + 4y) 24/ ...
\(a)=3x\cdot\left(2x-7-4x+5\right)=3x\cdot\left(-2x-2\right)=3x\cdot\left[-2\cdot\left(x+1\right)\right]\)
rut gon A=1+1^ 2+1^ 3+1^4+1^5+1^6+1^7+1^8+1^9+...+1^2012