123456 : x = 3

                x = 123456 : 3

                x = 41152

Vậy x = 41152

Đáp số : 41152

41152

123456 : x = 3

x = 123456 : 3

x = 41152

k mk nha

\(4a^2b^2-\left(a^2+b^2-c^2\right)^2\)

\(=\left(2ab-a^2-b^2+c^2\right)\left(2ab+a^2+b^2-c^2\right)\)

\(=-\left[\left(a-b\right)^2-c^2\right]\left[\left(a+b\right)^2-c^2\right]\)

\(=-\left(a-b-c\right)\left(a-b+c\right)\left(a+b-c\right)\left(a+b+c\right)\)

\(A\left(x\right)\) chia hết cho \(B\left(x\right)\) khi \(A\left(2\right)=0\)

\(\Rightarrow3.2^2+5.2+m=0\)

\(\Rightarrow m=-22\)

\(\Leftrightarrow x-2\in\left\{1;-1;2;-2;7;-7;14;-14\right\}\)

hay \(x\in\left\{3;1;4;0;9;-5;16;-12\right\}\)

a) x : 1/4 = 7/5
    x         = 7/5 x 1/4
    x         = 7/20
b) 9/2 - x = 3/5
            x = 9/2 - 3/5
            x = 39/10
c) 12/5 : x = 7/2
              x = 12/5 : 7/2
              x = 24/35

a) \(x\div\dfrac{1}{4}=\dfrac{7}{5}\)

    \(x=\dfrac{7}{5}\times\dfrac{1}{4}\)

    \(x=\dfrac{7}{20}\)

b) \(\dfrac{9}{2}-x=\dfrac{3}{5}\)

            \(x=\dfrac{9}{2}-\dfrac{3}{5}\)

            \(x=\dfrac{39}{10}\)

c) \(\dfrac{12}{5}\div x=\dfrac{7}{2}\)

             \(x=\dfrac{12}{5}\div\dfrac{7}{2}\)

             \(x=\dfrac{12}{5}\times\dfrac{2}{7}\)

             \(x=\dfrac{24}{35}\)

a)\(x=\dfrac{1}{4}\)x\(\dfrac{7}{5}=\dfrac{7}{20}\)

b)\(x=\dfrac{9}{2}-\dfrac{3}{5}=\dfrac{39}{10}\)

c)\(x=\dfrac{12}{5}:\dfrac{7}{2}=\dfrac{24}{35}\)

123456 x 123456 = 15241383936

~~~hok tốt~~~

123456 x 123456

= 123456²

= 15 241 383 936

123456*123456=15241383936

Cái này chỉ có GTNN

`(3-2x)^2>=0`

`=>12(3-2x)^2>=0`

Dấu "=" xảy ra khi `3-2x=0<=>2x=3<=>x=3/2.`

15241384035 nha bạn !

!