266
(532 x 7 - 266 x 14) x (532 x 7 + 266)
(532 x 7 - 266 x 14) x ( 532 x 7 + 266)
=523 x 7 - 266 x 13
=3661 - 3458
=203
Tính:(532*7-266*14)*(532*7-266)=?
=(3724-3724)*(3724-266)
=0*3458
=0
đáp số =0
k mình nha
( 532 * 7 - 266 * 14 ) * ( 532 * 7 - 266 )
= ( 3724 - 3724 ) * ( 3724 - 266 )
= 0 * 3458
=0
tk nha bạn mình nhanh nhất đấy
Tính nhanh:
( 532 x 7 - 266 x 14 ) x ( 532 x 7 + 266 )
( 532 x 7 - 266 x 14 ) x ( 532 x 7 + 266 )
= 0 x( 532 x 7 + 266 )
= 0
tinh ( 532 x 7 - 266 x 14 ) x ( 532 x 7 + 266 )
Tính bang cach thuan tien:{532*7-266*14}*{532*7+266}
532 x 7 x 14 x ( 266 - 266 )
532 x 7 x 14 x 0
532 x 7 x 0
532 x 0
= 0
Tinh bang cach thuan tien nhat: (532*7-266*140) * (532*7+266)
\(^{x=\lim\limits_{\rightarrow}=v=\cdot\cdot\cdot\cdot2}\)
xx7+xx12=266
\(x\times7+x\times12=266\\ x\times\left(7+12\right)=266\\ x\times19=266\\ x=266:19\\ x=14\)
X x 7 + X x 12 = 266
X x ( 7 + 12 ) = 266
X x 19 = 266
X = 266 : 19
X = 14.
xx(7+12)=266
xx19=266
x=266:19
x=14
Tính giá trị biểu thức:
a) ( 532 × 7 - 266 × 14) × ( 532 × 7 + 266)
b) 117 × ( 36 + 62) - 17 × ( 62 + 36)
c) ( 145 × 99 + 145) - ( 143 × 101 - 143)
a, ( 532 x 7 - 266 x 14 ) x ( 532 x 7 + 266 )
= 3724 - 3714 x 3724 + 266
= 0 x 3990
= 0
b, 117 x ( 36 + 62 ) - 17 x ( 62 + 36 )
= 117 x 98 - 17 x 98
= 11466 - 1666
= 9800
c, ( 145 x 99 + 145 ) - ( 143 x 101 -143 )
= 14500 - 14300
= 200
X x 7,6 = 266