Question

The value of the polynomial 5x - 4x² + 3 when x = -1 is​

Answer 1

5(-1)-4(-1)+ 3

-5 + 4 +3

-5 +8 +3

= 6

Answer 2

Hey there! I'm happy to help!

Let's plug in this x value.

5(-1)-4(-1)²+3

We follow PEMDAS and evaluate exponents first.

5(-1)-4(1)+3

We multiply.

-5-4+3

-9+3

-6.

Have a wonderful day! :D