Question

find the value of polynomial 5x-4x²+3 at x= -2​

Answer 1

Answer:

f(x) = 5x-4x²+3

Step-by-step explanation:

f(-2) = 5(-2) - 4(-2)^2 + 3

f(-2) = -10 -4(4) + 3

f(-2) = -10 -16 + 3

f(-2) = -26 + 3

f(-2) = -23

Answer 2

✨ Answer:-

The value of polynomial 5x-4x²+3 = -23.

✨ Explanation:-

$~~$

Substituting x = -2

5(-2) - 4(-2)² + 3

We follow PEMDAS and evaluate exponents first.

$~~$

$~~$

→ 5(-2) - 4(4) + 3

→ -10 - 16 + 3

→ -26 + 3

→ -23

$~~$

Therefore, the value of polynomial 5x-4x²+3 = -23.