The value of the polynomial difference when the value of x is 2.1 is -3.51
Difference of polynomials
Polynomials are functions that has a leading degree of 3 and above. Given the following polynomial expression below;
g(x)= 2x^2+3x-9 and;
h(x)=x^2+2x-6
Take the difference
(h-g)(x) = h(x) - g(x)
Substitute
(h-g)(x) = x^2+2x-6 - (2x^2+3x-9)
(h-g)(x) = x^2+2x-6-2x^2-3x+9
(h-g)(x) = -x^2-x+3
Substitute the value of x to have;
(h-g)(2.1) = -(2.1)^2 - 2.1 + 3
(h-g)(2.1) = -4.41 + 0.9
(h-g)(2.1) = -3.51
Hence the value of the polynomial difference when the value of x is 2.1 is -3.51
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