What you would do is plug in -3 where x is. h(x)=6(-3)*2-2(-3)+12 You then would solve the equation. *Remember P.E.M.D.A.S.* 6(-3)*2-2(-3)+12 - Multiply 6(-3) & 2(-3) together. -18*2-6+12 - Multiply -18*2 together. -36-6+12 -Add 12 to -36 -24-6 -Subtract -30