Question

2. Find the value of a polynomial 4a2-5x+3 at x= -1​

Answer 1

Answer:

1.414i or √2 i is the correct answer *_*

Step-by-step explanation:

4a2-5x+3  at x= -1​

put x = -1

4a² - 5(-1) + 3 =0

4a² + 5 + 3 = 0

4a² = -8

a² = -8/4

a² = -2

a = √-2

a = √2 i                 (i = iota)

a = 1.414i