Question

find the value of the polynomial 4x²—5x—7x at x=4​

Answer 1

Step-by-step explanation:

$4 \times {4}^{2} - 4 \times 5 - 7 \times 4 \\ \\ = 4 \times 16 - 20 - 28 \\ \\ = 64 - 48 \\ \\ = 16$

Answer 2

Answer:

x=4

4*4*4

5*4

7*4

64-20-28

16