Question

Evaluate the polynomial when a.x=0 and b.x=-1
x2 – 3x - 7

Answer 1

a) -7 & b) -6

Explanation:

Here,

a) x = 0

Solution ↦

`x2 - 3x - 7 \\ = 0 * 2 - 3 * 0 - 7 \\ = - 7`

b) x = -1

Solution ↦

`x2 - 3x - 7 \\ = - 1 * 2 - 3 * ( - 1) - 7 \\ = - 2 + 3 - 7 \\ = - 9 + 3 \\ = - 6`