Find the value of 2x3 + 4x2 - 5x + 9 for x = -2.
Answers
Answered by
2
Answer:
6+8-5x+9=-2
14-5x+9=-2
23-5x=-2
23+2=5x
25=5x
x=5
Answered by
1
Step-by-step explanation:
x = -2 = 2×3 + 4×2-5×-2+9
= 6+8-10+9
=14-19
= -5
Similar questions