How can we solve following problem? how can i use dsolve for like this case?

My MATLAB code is :

clc,clear all

syms x y

k = input('required function:');

f=inline(k)

a = input('Enter initial value of x, a: ');

alpha = input('Enter the initial value of y, alpha: ');

b = input('Enter required point, b: ');

n = input('Enter no. of subintervals, n: ');

h = (b-a)/n;

t=[a zeros(1,n)];

w=[alpha zeros(1,n)];

for i = 1:n+1

t(i+1)=t(i)+h;

w(i+1)=w(i)+h*f(t(i),w(i));

fprintf('%5.4f %11.8f\n', t(i), w(i));

end

plot(t,w,'-m*');

grid on;

xlabel('t values'); ylabel('w values');

syms y(x)

%The given ordinary differential equation is

ode=diff(y,x)==k

%The initial condition is

cond=y(a)==alpha

%The solution of given ordinary differential equation is

disp('The solution of given ODE is') %for display something in command %window

ysol(x)=dsolve(ode,cond)

But when we see in my output screen,we see :

required function:(8*x)-(4*x*y)

f =

Inline function:

f(x,y) = x.*8.0-x.*y.*4.0

Enter initial value of x, a: 0

Enter the initial value of y, alpha: 1

Enter required point, b: 0.1

Enter no. of subintervals, n: 10

0.0000 1.00000000

0.0100 1.00000000

0.0200 1.00040000

0.0300 1.00119968

0.0400 1.00239824

0.0500 1.00399440

0.0600 1.00598641

0.0700 1.00837205

0.0800 1.01114861

0.0900 1.01431293

0.1000 1.01786140

ode(x) =

diff(y(x), x) == 8*x - 4*x*y

cond =

y(0) == 1

The solution of given ODE is

Error using mupadengine/feval_internal (line 172)

Expecting an ODE in the specified variable.

Error in dsolve>mupadDsolve (line 328)

T = feval_internal(symengine,'symobj::dsolve',sys,x,options);

Error in dsolve (line 183)

sol = mupadDsolve(args, options);

Error in kkkkkkkkkkkkkkkkkkkkkk (line 30)

ysol(x)=dsolve(ode,cond)

What is the problem of my code?please correct me