(3x + 5)(2x - 7)
= 6x^2 + 10x - 21x - 35
= 6x^2 - 11x - 35
(- 5x + 2)(- 3x - 4)
= 15x^2 - 6x + 20x - 8
= 15x^2 + 16x - 8
....
(3x + 5)(2x - 7)
= 6x^2 + 10x - 21x - 35
= 6x^2 - 11x - 35
(- 5x + 2)(- 3x - 4)
= 15x^2 - 6x + 20x - 8
= 15x^2 + 16x - 8
....
Thực hiện phép tính \(A=\left(2^9+2^7+1\right)\left(2^{23}-2^{21}+2^{19}-2^{17}+2^{14}-2^{10}+2^9-2^7+1\right)\)
Help me, please!
Tính \(A=\left(2^9+2^7+1\right)\cdot\left(2^{23}-2^{21}+2^{19}-2^{17}+2^{14}-2^{10}+2^9-2^7+1\right)\)
Thực hiện phép tính:
\(A=\left(2^9+2^7+1\right)\left(2^{23}-2^{21}+2^{19}-2^{17}+2^{14}-2^{10}+2^9-2^7+1\right)\)
tính A=(29+27+1) (223-221+219-217+214-210+29-27+1)
a) tính
A=(29+27+1)(223-221+219-217+214-210+29-27+1
b) Số 223+1 co la so nguyen to ko
Thực hiện phép tính:
\(A=\left(2^9+2^7+1\right)\left(2^{23}-2^{21}+2^{19}-2^{17}+2^{14}-2^{10}+2^9-2^7+1\right)\)
Cần cách làm chi tiết
tìm x
\(\dfrac{x-241}{17}+\dfrac{x-220}{19}+\dfrac{x-195}{21}+\dfrac{x-166}{23}=10\)
Giải phương trình
x-241/17 + x-220/19 + x-195/21 + x - 166/23 = 10
\(\frac{x-241}{17}+\frac{x-220}{19}+\frac{x-195}{21}+\frac{x-166}{23}=10\)
TÍNH P
P= <29+27+1>.<223-221+219-217+214-210+25-27+1>