View Compilation Error

0_0_39055581_21463.cpp: In function 'double func(double)':
0_0_39055581_21463.cpp:11:20: error: 'pow' was not declared in this scope
   11 |         return 6 * pow(x, 7.0) + 8 * pow(x, 6.0) + 7 * pow(x, 3.0) + 5 * pow(x, 2.0) - y * x;
      |                    ^~~