Answer: a. h(4)=8
b. h(1.5)=-0.75
c. h(x-3)=(x-3)(x-5)
Explanation:
a. h(4)=4^2-2(4)
h(4)=16-8
h(4)=8
b. h(1.5)=1.5^2-2(1.5)
h(1.5)=2.25-3
h(1.5)=-0.75
c. h(x-3)=(x-3)^2-2(x-3)
h(x-3)=(x-3)(x-3)-2x-(-2*3)
h(x-3)=x*x-3x-3x+(-3*(-3))-2x+6
h(x-3)=x^2-6x+9-2x+6
h(x-3)=x^2-6x-2x+9+6
h(x-3)=x^2-8x+15
h(x-3)=x^2-5x-3x+15
h(x-3)=x(x-5)-3(x-5)
h(x-3)=(x-3)(x-5)