9900 : 36 - 15 x 11 

= 275 - 165

= 110

9700 : 100 + 36 x 12

= 97 + 432

= 529

( 15792 : 336 ) x 5 + 27 x 11

= 47 x 5 + 297

= 235 + 297

= 532

( 160 x 5 - 25 x 4 ) : 4

= ( 800 - 100 ) : 4

= 700 : 4

= 175

1036 + 64 x 52 - 1827

= 1036 + 3328 - 1827

= 4364 - 1827

= 2537

215 . 869 + 215 . 14 

= 215 . ( 869 + 14 ) 

= 215 . 883 

= 189945 

9900:36-15x11= 110 ;   

9700:100+36x12= 529 ;   

( 15792 : 336 ) x 5 + 27 x 11= 532

(160 x 5 – 25 x 4) : 4= 175

;   1036 + 64 x 52 – 1827 = 2537

   215 x 86 + 215 x 14= 21500

12 054 : (15 + 67) = 147

;   53 x 128 - 43 x 128 = 1280

;   29150 - 136 x 201= 1814

15 + 7 x 8 = 15 + 56 = 71

201 + 39 : 3 = 201 + 13 = 214

15+7x8=15+56=71

201+39:3=201+=214

em đăng bên box toán để mấy bạn kia trả lời nhé =)))))

1: A=4x^2+12x+9-4x^2+4x-1-6x=10x+8

Khi x=201 thì A=10*201+8=2018

2: B=4x^2+20x+25-4x^2+12=20x+37

Khi x=1/20 thì B=1+37=38

1, \(A=\left(2x+3\right)^2-\left(2x-1\right)^2-6x\)

\(A=\left[\left(2x+3\right)+\left(2x-1\right)\right]\left[\left(2x+3\right)-\left(2x-1\right)\right]-6x\)

\(A=\left(2x+3+2x-1\right)\left(2x+3-2x+1\right)-6x\)

\(A=4\left(4x+2\right)-6x\)

\(A=16x+8-6x\)

\(A=10x+8\)

Thay \(x=201\) vào A ta có:

\(A=10\cdot201+8=2010+8=2018\)

Vậy: ....

2, \(B=\left(2x+5\right)^2-4\left(x+3\right)\left(x-3\right)\)

\(B=\left(2x+5\right)^2-4\left(x^2-9\right)\)

\(B=4x^2+20x+25-4x^2+36\)

\(B=20x+61\)

Thay \(x=\dfrac{1}{20}\) vào B ta có:

\(B=20\cdot\dfrac{1}{20}+61=1+61=62\)

Vậy: ...

a)

8775:351 + 467 x 201=

=25 + 93867=93892

cảm ơn 

a) \(P=x\left(x-y\right)+y\left(x-y\right)=\left(x-y\right)\left(x+y\right)=x^2-y^2=5^2-4^2=9\)

b) \(Q=x\left(x^2-y\right)-x^2\left(x+y\right)+y\left(x^2-x\right)=x^3-xy-x^3-x^2y+x^2y-xy=0\)

41 x 5 - 100 = 205 – 100 = 105

A) \(483+17442:57-175\)

\(=483+306-175\)

\(=614\)

B) \(201\times36:54+1087\)

\(=134+1087\)

\(=1221\)

C) \(994-23374:58+576\)

\(=994-403+576\)

\(=1167\)

`@` `\text {Ans}`

`\downarrow`

`483 + 17442 \div 57 - 175`

`= 483 + 306 - 175`

`= 789 - 175`

`= 614`

`B)`

`201 \times 36 \div 54 + 1087`

`= 7236 \div 54 + 1087`

`= 134 + 1087`

`= 1221`

`C)`

`994 - 23374 \div 58 + 576`

`= 994 - 403 + 576`

`= (994+576) - 403`

`= 1570 - 403`

`=`1167`

201 + 39 : 3 = 201 + 13 = 214