Question

If s(x) = x – 7 and t(x) = 4x2 – x + 3, which expression is equivalent to (t circle s) (x)?

Answer 1

Explanation:

4(x – 7)2 – (x – 7) + 3

Answer 2

4(x - 7)2 - (x - 7) + 3

Explanation:

"A polynomial is a type of expression in which the exponents of all variables should be a whole number."

It is given that:

s(x) = x - 7 and t(x) = 4x2 - x + 3,

Now we have to find the expression is equivalent to (t × s)(x),

So take s(x) = x - 7 and substitute it in for every x in t(x).

Then,

t(x) = 4x2 - x + 3

t(x) = 4(x - 7)2 - (x - 7) + 3

Therefore, the expression equivalent to (t × s)(x) is 4(x - 7)2 - (x - 7) + 3.