Question

4.Given w(x) =3×-2, v(x) =2×+7 and k(x)= -6x-7, find (w-v-k) (2)?​

Answer 1

3x-2-2x+7--6x-7

3x-2x+6x-2+7-7

3x+4x-2

(7x-2)2

14x-4

Answer 2

12

Explanation:

We input 2 into each function:

w(2) = 3(2) - 2 = 4

v(2) = 2(2) + 7 = 11

k(2) = -6(2) - 7 = -19

Then we place our answers in w - v - k

(4) - (11) - (-19)

= 4 - 11 + 19

= 12