\(=56^{58}\)

\(=1000^{14}\)

Nhớ tk mình nha !

Diện tích hình vuông là :

5 x 5 = 25 ( cm² )

        Đáp số :..................cm²

56⁵⁶ x 56² = 56⁵⁸

^{........................................}

1000¹² x 1000² = 1000¹⁴

..........................

AI K MK LÊN 60 ĐIỂM 3 K MỖI NGÀY

Diện tích hình vuông là:

\(5\times5=25\left(cm^2\right)\)

Đáp số: \(25\)\(cm^2\)

\(56^{56}\times56^2=56^{58}\)

\(1000^{12}\times1000^2=1000^{14}\)

x) \(\frac{-3}{7}.x-\left(\frac{1}{21}.x-\frac{-4}{9}\right)=\frac{2}{8}\)

\(\frac{-3}{7}.x-\frac{1}{21}.x-\frac{4}{9}=\frac{1}{4}\)

\(x.\left(\frac{-3}{7}-\frac{1}{21}\right)-\frac{4}{9}=\frac{1}{4}\)

\(x.\frac{\left(-10\right)}{21}-\frac{4}{9}=\frac{1}{4}\)

\(x.\frac{\left(-10\right)}{21}=\frac{1}{4}+\frac{4}{9}\)

\(x.\frac{\left(-10\right)}{21}=\frac{25}{36}\)

\(x=\frac{25}{36}:\left(\frac{-10}{21}\right)\)

\(x=\frac{-35}{24}\)

Chúc bn học tốt !!!

(x/-5+2/3);11/5-1,4.15/49=|-5|/21

(x/-5+2/3);11/5-1,4.15/49=5/21

(x/-5+2/3);11/5-21/49=5/21

(x/-5+2/3);11/5=5/21+21/49

(x/-5+2/3);11/5=35/147+63/147

(x/-5+2/3);11/5=35+63/147

(x/-5+2/3);11/5=98/147

x/-5+2/3=98/147.11/5

x/-5+2/3=98.11/147.5

x/-5+2/3=1078/735

x/-5+2/3=154/105

x/-5=154/105-2/3

x/-5=154/105-70/105

x/-5=154-70/105

x/-5=84/105

x/-5=-4/-5

suy ra x=-4

* la dau gi vay ban

dấu nhân

bn lm giúp mk với, mk k cho

x+15+3=56

x+15=56-3=53

x+15=53

x=53-15=38

tích mik mik tích lại

x+15+3=56

x=56-3-15

x=38           k nha

Kết quả là

38

k mk 

mk k lại cho mk hứa

b,21/17x13/14x56x3/42

=21/17x3/42x56x13/14

=21x3/17x42 x 56x13/14

=21x3/17x21x2 x 14x4x13/14

=3/17x2 x 4x13

=3/24 x 52=3x52/24

=3x52/3x8

=52/8=13/2

a, 6/7 x 16/15 x 7/6 x 21/32

=(6/7 x 7/6)x16/15x21/32

=16/15x21/32

=16x21/15x32

=16x3x7/3x5x16x2

=7/5x2=7/10

sakura

Tính nhanh:

  a) 56 x 44 + 56 x 11 + 56 x 45

= 56 x ( 44 + 11 + 45 )

= 56 x 100

= 5600 

b) 8 x 3 + 8 x 6 + 8

= 8 x ( 3 +  6 + 1 ) 

= 8 x 10

= 80

^^ Học tốt!!!

a, 56 x 44 + 56 x 11 + 56 x 45

= 56 x ( 44 + 11 + 45 )

= 56 x 100

= 5600

b, 8 x 3 + 8 x 6 + 8

= 8 x ( 3 + 6 + 1 )

= 8 x 10

= 80

a,5600

b,80

Mình sẽ đổi.

\(\frac{2}{15}\cdot\frac{3}{x}=-\frac{70}{21}\)

\(\frac{3}{x}=-\frac{70}{21}:\frac{2}{15}\)

\(\frac{3}{x}=-25\)

\(x=3:\left(-25\right)=-\frac{3}{25}\)

\(\frac{3}{x}=\frac{-70}{21}\div\frac{2}{15}\)

\(\frac{3}{x}=-25\)

\(\Rightarrow x=\frac{-3}{25}\)

\(a,\frac{62}{7}:x=\frac{29}{9}:\frac{3}{56}\)

\(\frac{62}{7}:x=\frac{1624}{27}\)

\(x=\frac{62}{7}:\frac{1624}{27}=\frac{837}{5684}\)

\(b,\frac{1}{5}:x=\frac{1}{5}-\frac{1}{7}\)

\(\frac{1}{5}:x=\frac{2}{35}\)

\(x=\frac{1}{5}:\frac{2}{35}=\frac{7}{2}\)

\(c,\frac{2}{3}.x-\frac{4}{7}=\frac{1}{7}\)

\(\frac{2}{3}.x=\frac{1}{7}+\frac{4}{7}=\frac{5}{7}\)

\(x=\frac{5}{7}:\frac{2}{3}=\frac{15}{14}\)

\(d,\frac{2}{7}-\frac{8}{9}.x=\frac{2}{3}\)

\(\frac{8}{9}.x=\frac{2}{7}-\frac{2}{3}=-\frac{8}{21}\)

\(x=-\frac{8}{21}:\frac{8}{9}=-\frac{3}{7}\)

\(e,\frac{4}{7}+\frac{5}{9}:x=\frac{1}{5}\)

\(\frac{5}{9}:x=\frac{1}{5}-\frac{4}{7}=-\frac{13}{35}\)

\(x=\frac{5}{9}:-\frac{13}{35}=\frac{175}{117}\)

\(i,\frac{2}{5}-\frac{2}{5}.x=\frac{2}{5}\)

\(\frac{2}{5}.\left(1-x\right)=\frac{2}{5}\)

\(1-x=\frac{2}{5}:\frac{2}{5}=1\)

\(x=1-1=0\)

\(g,\frac{2}{3}+\frac{1}{3}:x=-1\)

\(\frac{1}{3}:x=-1-\frac{2}{3}=-\frac{5}{3}\)

\(x=\frac{1}{3}:-\frac{5}{3}=-\frac{1}{5}\)

học tốt nha

5x2+3x3=19

Mình nhanh nhất nhè, khoanh cho mình nhé, mình kb nhé

10+9=19 nha

5 x 2 + 3 x 3

= 10 + 3 x 3

= 10 + 9

= 19