Evaluate the expression for the given value of the variable(s). 5a + 5b; a = −6, b = −5

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?