Question

H(x) = x2
j(x) = 2x2-5
find h(x) - j(x)

Answer 1

Explanation:

h(x) - j(x) =>
`x^2-(2x^2-5)`

The negative sign out in front of the set of parenthesis changes the signs of everything inside the parenthesis, so now we have, without parenthesis:

`x^2-2x^2+5` which simplifies down to

`-x^2+5`