Question

The value of the polynomial 5x²-3x+7 at x=-1 is 9 15 1 8

Answer 1

Answer:

The value of the polynomial 5x²-3x+7 at x=-1 is 15

Step-by-step explanation:

Let f(x)=5x²-3x+7

f(-1)=5(-1)²-3(-1)+7=5+3+7=15

Answer 2

Answer:

The value is 15

Step-by-step explanation:

→ p(x) = 5x² - 3x + 7

• Put x = -1

→ p(-1) = 5(-1)² - 3(-1) + 7

→ p(-1) = 5 + 3 + 7

→ p(-1) = 15