Question

The value of (x^2 )- 5x -7 when x= -3 is:​

Answer 1

Answer:

x²-5x-7

(-3)²-(5×(-3))-7

9+15-7

24-7

17, answer

Answer 2

Answer:

17

Step-by-step explanation:

x^2 = (-3)^2 = 9

5x = 5(-3) = -15

therefore, x^2-5x-7 = 9 - (-15) - 7 = 17